Xenserver 5.5 UPD 2 running on Dell T610 with Perc H200 ( LSI SAS 2008) - won't install

I've just purchased a Dell PowerEdge T610, 2 x 300Gb 15,000 rpm SAS drives, 16Gb memory, Perc 200 (LSI SAS 2008).  I want/need to install Xenserver 5.5 UPD 2 (free version) onto this machine, but it appears not to see the RAID controller.

I've successfully installed/used 5.5 on older Dell machines, but I'm struggling with this install.

Having read several forums, I'm still unsuccessful - I've followed all the instructions in http://forums.citrix.com/thread.jspa?threadID=259925&start=0&tstart=0

I have also downloaded the Citrix XenServer Dell Edition from the Citrix site, but this won't install either.

I'm very good with Windows, but know next to nothing about linux

Can someone please assist?