CTM - Many thanks for your help, ill test it tonight.
Charles - Thanks for the warning, The problem is i don't want to give full admin to the mod in question as there are so many other things they could break by accedent, i trust them completly security wise.
I guess it would be simpler to have another level between mod and admin, that can handle user accounts.
I'll give this some more thoughts before going a head with it.
Many thanks again All.
Paul