Host hard drive is full - Need to delete Snapshots

Hello,

I'm trying to help someone out that has a Mac running Windows 7 64 Bit Pro using VMware Fusion 5.0.3.  They have a 1TB hard drive but now only have 725 MB free!

I checked the VMware settings and they had AutoProtect Snapshots turned on to 1/Day and set "Maximum number of snapshots to keep:" as 3.

When viewing the snapshot history it shows that there are 51 snapshots with the first one (oldest) being 55.4GB, second  8.7GB and third 958.3MB.  There's also a second tree that only has one leaf about 20 snapshots later.

What's the best way to delete these snapshots considering I barley have any storage space left.

I also don't mind completely wiping out all the snapshots and starting fresh.

Thanks in advance!