We all started at the same place...... ;D
- As for the import itself, check which Poser SDK you chose to import with. If it doesn't match the version of Poser, then you can get this problem. The other most common issue is having your runtime pass through a manager program, like Howard's P-Booost. If the manager isn't active, Poser may find the content selected last via the virtual pathing, but Vue doesn't know what to do with that. If you have the P9 SDK selected, then sure P9 would work much better.
- Only if you could properly rig the figure in Vue, which is........insane, to say the least. It has a powerful animation system, but it is not tailored for organic figure animation.