diff --git a/julcho.c b/julcho.c
index 990d12e..cd92d70 100644
--- a/julcho.c
+++ b/julcho.c
@@ -156,23 +156,33 @@ static int JulChoTransact(pJulCho self, char *command,
     return status;
 } 
 /*---------------------------------------------------------------------------*/
-static int JulChoSetCallback(void *userData, void *callData, 
-    pHdb currentNode, hdbValue v){
+static hdbCallbackReturn JulChoSetCallback(pHdb node, void *userData, 
+		pHdbMessage message){
     pJulCBData cbData = NULL;
     char command[256], reply[256];
+    pHdbDataMessage mm = NULL;
     int status;
     
     cbData = (pJulCBData)userData;
     if(cbData == NULL){
-        return 0;
+        return hdbContinue;
     }
-      
-    if(v.dataType == HIPINT){
+ 
+    /*
+     * Is this for us?
+     */
+    mm = GetHdbSetMessage(message);
+    if(mm == NULL){
+    	return hdbContinue;
+    }
+    
+    
+    if(mm->v->dataType == HIPINT){
         snprintf(command,255,"%s %s%d%s",cbData->comCode, cbData->prefix,
-            (int)v.v.intValue,cbData->postfix);
-    } else if(v.dataType == HIPFLOAT){
+            (int)mm->v->v.intValue,cbData->postfix);
+    } else if(mm->v->dataType == HIPFLOAT){
         snprintf(command,255,"%s %s%f%s",cbData->comCode, cbData->prefix,
-            (float)v.v.doubleValue,cbData->postfix);
+            (float)mm->v->v.doubleValue,cbData->postfix);
     } else {
         assert(0); /* this is a programming error */
     }
@@ -181,9 +191,9 @@ static int JulChoSetCallback(void *userData, void *callData,
     status = JulChoTransact(cbData->pDriv, command, reply, 255);
     if(status < 0) {
             cbData->pDriv->errorCode = status;
-            return 0;
+            return hdbAbort;
     }
-    return 1;
+    return hdbContinue;
 }
 /*------------------------------------------------------------------------------*/
 static pHdbCallback MakeJulChoSetCallback(pJulCho driv, char *command, 
@@ -202,8 +212,6 @@ static pHdbCallback MakeJulChoSetCallback(pJulCho driv, char *command,
     strncpy(cbData->postfix,postfix,9);   
     hdbCB->next = NULL;     
     hdbCB->previous = NULL;     
-    hdbCB->id = 557;
-    hdbCB->internalID = NULL;
     hdbCB->killFunc = free;
     hdbCB->userCallback = JulChoSetCallback;
     hdbCB->userData = cbData;
@@ -590,25 +598,30 @@ static int testParGroup(char *name){
         }
 }
 /*-------------------------------------------------------------------------*/
-static int JulChoGetCallback(void *userData, void *callData, 
-    pHdb currentNode, hdbValue v){
+static hdbCallbackReturn JulChoGetCallback(pHdb currentNode, 
+		void *userData, pHdbMessage message){
     pJulCho self = NULL;
     SConnection *pCon = NULL;
     int status;
     char error[128], buffer[256];
+    pHdbDataMessage mm = NULL;
     
     self = (pJulCho)userData;
-    pCon = (SConnection *)callData;
-    
     assert(self != NULL);
     
+    mm = GetHdbGetMessage(message);
+    if(mm == NULL){
+    	return hdbContinue;
+    }
+    pCon = (SConnection *)mm->callData;
+    
     status = UpdateJulChoParameters(self,testParGroup(currentNode->name));
     if(status != 1 && pCon != NULL){
         JulChoErrorcodeToString(self->errorCode, error,127);
         snprintf(buffer,255,"ERROR: %s occurred reading par",error);
         SCWrite(pCon,buffer,eError);
     }
-    return status;
+    return hdbContinue;
 }
 /*--------------------------------------------------------------------------*/
 static int AppendJulChoROPar(pHdb parent, char *name, int type){
@@ -632,17 +645,17 @@ static int ConfigureSingleJulCho(pHdb parent, pJulCho driv,
     if(pCb == NULL){
         return 0;
     }
-    AppendHipadabaCallback(child,HCBSET,pCb); 
+    AppendHipadabaCallback(child,pCb); 
     pCb = MakeFloatRangeCallback(5.0, 355.);
     if(pCb == NULL){
         return 0;
     }
-    AppendHipadabaCallback(child,HCBSET,pCb); 
+    AppendHipadabaCallback(child,pCb); 
     pCb = MakeJulChoSetCallback(driv,"SPH", prefix,postfix);
     if(pCb == NULL){
         return 0;
     }
-    AppendHipadabaCallback(child,HCBSET,pCb); 
+    AppendHipadabaCallback(child,pCb); 
     AddHipadabaChild(parent,child,NULL);
     
     child = MakeHipadabaNode("gatewidth",HIPFLOAT,0);
@@ -653,12 +666,12 @@ static int ConfigureSingleJulCho(pHdb parent, pJulCho driv,
     if(pCb == NULL){
         return 0;
     }
-    AppendHipadabaCallback(child,HCBSET,pCb); 
+    AppendHipadabaCallback(child,pCb); 
     pCb = MakeJulChoSetCallback(driv,"SGW", prefix,postfix);
     if(pCb == NULL){
         return 0;
     }
-    AppendHipadabaCallback(child,HCBSET,pCb); 
+    AppendHipadabaCallback(child,pCb); 
     AddHipadabaChild(parent,child,NULL);
     
     if(!AppendJulChoROPar(parent,"nomspeed",HIPINT)){
@@ -750,8 +763,8 @@ static int ConfigureSingleJulCho(pHdb parent, pJulCho driv,
      */
    child = parent->child;
    while(child != NULL){
-        AppendHipadabaCallback(child,HCBREAD,
-            MakeHipadabaCallback(JulChoGetCallback,driv,NULL,-1,NULL)); 
+        AppendHipadabaCallback(child,
+            MakeHipadabaCallback(JulChoGetCallback,driv,NULL)); 
         child = child->next;
    }
    return 1;     
@@ -784,19 +797,21 @@ static int InitJulChoPar(pJulCho driv){
      */
     parChild = GetHipadabaNode(child,"nomspeed");
     assert(parChild != NULL);        
-    DeleteCallbackChain(parChild->writeCallbacks);
-    parChild->writeCallbacks = NULL;
+    /*
+     * TODO: possible delete some callbacks
+     */
+    
 
     pCb = MakeCheckPermissionCallback(usUser);
     if(pCb == NULL){
         return 0;
     }
-    AppendHipadabaCallback(parChild,HCBSET,pCb); 
+    AppendHipadabaCallback(parChild,pCb); 
     pCb = MakeJulChoSetCallback(driv,"SMS","","");
     if(pCb == NULL){
         return 0;
     }
-    AppendHipadabaCallback(parChild,HCBSET,pCb); 
+    AppendHipadabaCallback(parChild,pCb); 
     AddHipadabaChild(driv->parNode,child,NULL);
     
     child = MakeHipadabaNode(CH3N,HIPNONE,0);