Michael,
are you talking about embedded LN:DI object or general attached TIFs?
If you are dealing with LN:DI objects then I'd invite you to visit our web site (or, find our booth on Lotusphere show-floor) and check our IMiS/Migrator.
If you are having problems with attached TIF, feel free to send me a sample via email and I'll see what's going on.
Hope it helps.
Regards,
Bine.Zerko@imis.si
http://www.imaging4notes.com
AIM: BineZerko