Total Noob? Permissions issue when trying to move files

[c141heaven]

I've just set up FREENAS on a system with two 3-TB drives. All seems to be running fine. I can access this from my Windows 7 pc and from ubuntu. I'm using FTP to transfer a large quantity of files from some local Windows external hard drives to the NAS. There's no issue copying the files to the new drives, accessing them (mostly mp3s) or deleting them. After a huge amount of noob struggle and googlin', I managed to get the drives visible on my ubuntu machine. I can bring up a drive's directories in a side by side display and browse/run/delete them However, when I try to MOVE them from one directory to another on the FREENAS drives it tells me there's a permissions error. I'm logged in as the admin and am owner of the all the files and have 777 rights so I don't quite see how permissions can be the issue. I'm [mostly] sure I have the mounts and shares (windows CIFS) right.

I tried setting up the FREENAS for both CIFS and NFS (to the same directories) and then accessing the FREENAS drives via the NFS shares instead of the CIFS ones from ubuntu with the same results.

At this point I'm not sure if this problem is on the FREENAS or ubuntu side.

If anyone knows where to go from here I'd appreciate the help. If I've said anything that's completely bogus, please remember I'm a total virgin on this linux/unix stuff. Thanks.