Actually, it's probably /dev/sda2 you need to recover from, /dev/sda1 is /boot partition.
Change to root and run vgscan
Because you have LVM partitions on the two 500GB disks (sdb and sdc) you should be careful to identify the correct one on /dev/sda2, you can use vgdisplay to check its size (~160GB).
Assuming it's VolGroup00, then activate with
vgchange -ay VolGroup00
(If there's a clash of names then you can activate using -u UUID)
Now you should see logical volumes in /dev/VolGroup00/ , you probably want LogVol00 (in Fedora 11 it may be 'lv_root')
mount /dev/VolGroup00/LogVol00 /mnt/recover
and your files should be accesible in /mnt/recover