Acronis TrueImageHome v11.0.0.8053 - help?

Hi, My 75 year old father in law's vista installation died from a virus infection. The boot drive no longer boots, and I am in the process of attempting to recover whatever I can via a handy USB-to-SATA cable.

He thought he had an 80-gig hard drive, and he's right, one of the partitions is an NTFS 80 gig partition. But it turns out computer manager says there is also a 240 gig FAT32 partition called ACRONIS SZ, which doesn't show up in the list of logical drives (ie has no drive letter, currently). He also has a USB-connected drive which he uses for backup.

He has Acronis TrueImageHome v11.0.0.8053 installed.

Question 1 - what is likely to be on that FAT32 partition? Any help would be useful. I am somewhat computer savvy.

I don't want to mess anything before I understand what is going on, with the smaller 80-gig NTFS (used-to-boot) partition, the 240-gig FAT-32 partition labeled ACRONIS SZ, and the USB-connected larger drive which is apparently for backup.

Thanks,
Steve.