There’s stuff I don’t like about PP2 but I’m not sure you’re being fair to the program.
There’s a big difference between PP2 and 1.5, I don’t know why you’d have the expectation that it will convert successfully for you old prpject files. Can’t you finish those projects on 1.5 and start from scratch on PP2. I mean the time you’re wasting converting, fixing titles and learning a new program on a job — could be spent actually editing in 1.5 and finishing your projects much faster.
Most NLE apps which go through major updates, could have significant problems importing older projects, not just PP2. These programs aren’t word processors, they now author DVD’s, have heavy duty titling and mixing consoles — how many links to offline and online media files would PP2 or P 1.5 have in a normal half hour program (lots, so lot’s can happen if there’s an import problem on any one link).
Comforming audio is done by most PC NLE programs but PP2’s ability to do it in the background, while you can still be working is great. My version of Edius doesn’t allow that (I have to wait for the waveforms to refresh all the time and can’t work on anything else.)
Anyhow, best of luck, hope you are able to convert successfully, but again, if it’s taking you a long time to correct PP2 import problems, really consider returning to 1.5 (if it’s not to late) to finish.