Desktop and Laptop Option 7.5 Questions Newbie

1. How does Desktop and Laptop Option 7.5 differ than Backup Exec 2010? What does it do?

2. Can I use Desktop and Laptop Option 7.5 in conjunction with Backup Exec 2010 without having to upgrade to Backup Exec 2012?

3. Do either of these products offer a recovery image or clone feature similar to Ghost?

4. We may be going to HC3 Virtualization and want to know if either of these will work as a SANS or NAS option?