3.319 Upgrade Failed

[bourgeoisdoor]

I upgraded to 3.319 on 2/22/08 on restart Microsoft must move my kma files. Next popup says files moved safely. When I try to open Hoster I get the same two popups.
I am running XP on a Dell Laptop Inspiron E1705, internal hard drive, fully updated. I am a singer and have about 1000 songs.
My (song) files all end in .kma
In the last hour or so, I removed the 3.319 version I installed on 2/22.
I installed the 3.316 version from my backup.
Now the Hoster program will start up, but when I play the first song I get
"c:\Program Files\Micro Technoligies Unlimited\Hoster\Songs\LG101.10kma
track missing"

Thank you for your help,
Gary