I just imported my entries via Greymatter to WP 1.2 and then upgraded to WP 1.5. It worked like a charm! I have the fine folks on this support forum to thank for that. :)
There is only one thing, and I think it has something to do with the text encoding. All of the smart quotes in my entries, such as: (') (") (-) and sometimes even the (...), have all been replaced with (?).
Is there an easier, less pain-staking, way to change them back, or does this have to be done by hand. I'm willing to do that, even though it'll take eons (I have over 200 entries). Aak!