Thanks Zebee. I gave up on cifs.ko in the end.

For any interested parties - I installed wizard-mounter and it's dependencies. Then installed samba-common, smbfs in that order. I can now connect to my Unslung NSLU2, 320Gb on tap from the file manager. One word of caution, you have to set global file permmissions on your share other wise the N800 sees, but wont open.

Thanks again.

Hopalong