Toast got toasted when going back to OS 9.1. HELP!!!!!!!!

[Mr. Fancy Pants]

I've Got an iMac 400 DV SE 640mb ram and am running OS9.1/OSX 10.0.4. Toast 5.0.1 was reading my Iomega USB650 with no problems, even when I upgraded to OS 9.2.1. I went back to OS 9.1 and reinstalled toast. It recognized toast while I was in OS 9.1 but when I go to OS X it doesn't !!!! Please....For the love of GOD!!! help ME!!!!
PS - Toast 5.1p1 (os x native app. beta) quits auto matically on me on the start up.

 

[[worf]]

You may have lost the USB drivers to the Iomega burner when you upgraded to 9.2.1. Try installing the latest drivers (www.iomega.com) and also upgrading to Toast 5.2 (free download).