well had a few problems like the other users here. seems it really wanted a user/pass for samba support.
went to my mediacenter/storage server and added a wii account. entered in the user/pass and all was fine.
i assume those of us who are using it are using it because of massive rom collections. a little tip from myself is:
i keep all my roms goodmerged. i ungoodmerged them, and then separated them by region *usa, eur, jpn-translated, and beta. im usa region* kept the jpn, eur, betas in their own folders, but the usa list is way too big for one directory (around 25-30 seconds to open the folder) i separated all the roms into one directory for each letter. the largest directory (S) now opens in under 3 seconds. great improvement for the speed of using smb.
i will be setting up a similar setup using gba roms. *if vba supports smb, which i hope/assume it does*