Emmanuel,
Our QA people tried to duplicate the snapshot generation and importation process, using the AdminStudio distribution process that you have used (i.e. AdminStudio v3.0 CD install, AdminStudio v3.01 patch via the Update Service, and AdminStudio 'Value Pack' via the Update Service), without any failure.
The nature of your problem as reported is an immediate snapshot importation failure in which no error information is returned. Now, there should always be error information and it's absence puzzles me. I can offer two theories.
First theory is that the ConflictSolver database or database schema is corrupt. The 'Value Pack' will cause the ConflictSolver database schema to be modified. The failure of this schema update would cause problems for ConflictSolver. However, in the absence of any other importation problem, such as importing an MSI package, I would be forced to discount this theory.
Second theory is that the Snapshot build process did not complete properly. You system configuration as described is unfamiliar to me and this fact leads me to suspect that some aspect of the Snapshot build process failed. To try and confirm this theory, I would need some files from you. In your snapshot save directory, you should have an INI, NIR, and OSC file. Under ideal circumstances, if you could zip up these files and send them to me, then I would be most appreciative. However, I would settle for the just OSC file.
AdminStudio v3.01 when released was distributed as a full product on our production CDs. Due to size constraints and other issues, the preferred method for accessing any AdminStudio update is through the Update Service. The Update Service for AdminStudio will only distribute the software in MSI patch files. It may be possible to make the release available to you for download, but I don't believe that it will solve your problem.
Allen Saxton
InstallShield Development