Media center receiver service. i fit a dual core opteron 280 on my 939 board instead of the 4000+

Question

i fit a dual core opteron 280 on my 939 board instead of the 4000+ as media center kept saying it was low on resources, since then i have had constant "media center receiver service has encountered a problem and needs to close" messages about every 2 minutes, i think i need to re instal mce 2005, but the setup disk will not recognise my sata drive, and to make matters worse i do not have a floppy drive in the thing to load the sata driver at startup, also i am annoyed about having to go through the activation rubbish at the end, i have heard there are two files you can save out to avoid this