I just found myself in a similar position...
I've got a fresh PE2850 which I'd like to run FC2 on. I copied the Dell drivers from their site (http://ftp1.us.dell.com/scsi-drivers...0.7-A10.tar.gz
) which are designed for this controller, but only blessed for the enterprise-versions.
I boot the RH install with expert noprobe dd and toss in my driver disk, but it hands on a bluescreen as soon as the floppy gets loaded. I haven't got any further than this.
I'm going to try in the next few days doing a FC2 install on an older PE, then create a new kickstart image with these new drivers added in. Hopefully that'll work.
Any other advice or stories about FC2 and the new, new Dell PE series would be appreciated...