I apologize in advance for cross-posting to multiple forums... I just wasn't exactly sure if this was a request or a question (maybe it's a bit of both)

I also posted this over on infopop's site...
This is a question pertaining to the new version 6 -- I have additional fields (hacks) added to my member files, such as the ICQ hack, AIM, etc. I understand from what I've read this will pose a problem upgrading to the new version.
Is there a fix for this? I'm willing to lose that info if I have to, but I'd really rather avoid it if I can. ICQ and AIM numbers aren't all that important and can be easily replaced, but one of my fields is year of birth and I really don't want to lose that one if I can avoid it.
Thanks!