Hi Lillian,
>> When I create a new BPMN 2 diagram, I must enter the id and the package name in order to save the diagram. << Not sure this is true. You need to set the package name attribute value to your guvnor package in order to build the package, but not to save a process. Setting the id of a process is also not required to save the process in guvnor.
>>I see a new version under the meta data - but when I open it - my changes are lost. I see the first file I changed - even if this is version 2<< This is really weird. There has to be something in your server log that indicates possible parsing error(s) during saving of the process, can you please look?
I am guessing here but it seems you may not have Guvnor and Designer running on the same server/port/host..is this true?
Hope this helps.