Installation of Drivers

Hi
I am a newbie to Linux. I am running version 0.3 and I have just installed a new VIA VT6421 based PCI-SATA card. How do I go about installing drivers so that OMV can use the card. Would it be easier to reinstall the OS and let the it sort this out.
BTW I assume that this is the problem as OMV detects all the HDDs connected to the mainboard but not the ones connected to the new card.
Thanks
Snarfty

Ok so what have I done wrong??

There are alot of important updates in my update manager which won't update (can't resolve FTP server errors when I try)

according to the shells help command there doesn't seem to any command that even remotely looks like lspci.

Also I see nothing that indicates that the BIOS has or has not detected the card

login as: root
root@192.168.0.18's password:
Linux NAS 2.6.32-5-686 #1 SMP Sun May 6 04:01:19 UTC 2012 i686


The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.


Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Fri Jan 11 06:40:49 2013 from 192.168.0.13
root@NAS:~# lspci
-bash: lspci: command not found

Ok don't worry about anything.
It has just decided to work. I have no idea how or why but it can no see both drives connected to the PCI card.
Thanks for the help SerErris