HarryDS 0 Newbie Poster

I have an iOmega Home storage 1Tb model 31803000, which contains some info I would like to recover.(I know... a backup, but thats is probably not complete..)
Had the NAS working on XP using a router (Sitecom 300N), but it stopped working normally, went visible/invisilbe and when visible stopped during data transfer.
A friendly neighbour helped me to dismantle the disk. Now I have the disk directly connected to a Ubuntu system. Ubuntu recognise the system, but reports "invalid partition structure", so now I hope to recover the files although the partition is a little bit problematic. Looking and browsing for solutions..
https://dl.dropbox.com/u/2675530/Screenshot%20from%202012-11-03%2022_42_37.png
shows a screenshot as well as
https://dl.dropbox.com/u/2675530/Screenshot%20from%202012-11-04%2012_09_05.png
filetype xfs and 200 gb free space..
What tools are out there I can use to find and copy the files?