ReadyNAS Data Recovery - VMware recovery tool

I have mounted the drive from a ReadyNAS Duo on a Ubuntu VMWare image using an external USB enclosure. I can see the c/home directory which only contains an admin directory but I do not see any shares. Is it still possible that my shares exist on the drive and can be accessed? I have used R-Studio to recover some files but without filenames. The filenames are replaced with numbers by R-Studio. I can see the c/home and c/home/admin folder in R-studio and I don't see any shares there either. In R-Studio the block size for the partition is reported as 4KB. The ReadyNAS is about a year old I think. Is it likely that this is a block size issue and I need to use one of the VMWare images with fuse to recover the files or does the fact that I'm able to mount and view the directories mean the shares are not there? Thanks in advance. - Scott