Ok so here is my situation.

I have a Server 2008 R2 Enterprise and I have performed a Full System backup using the Server Backup feature. Originally the drives were on a 72GB hard drives RAID 1 and I want to upgrade them to 300GB Hard Drive.  So I decided that I would just backup and restore onto the 300GB Hard Drive.  But when I try to perform the server 2008 recovery, it will not recognize the backup on the external hard drive at all.  It wont even show up in the list.  But if I go searching for drivers it shows up just fine in the drive list.  So what am I missing?