IIS 5 FTP Server missing DIR's

i've got IIS 5 running on a server on my LAN, now the FTP Server itself works, and i can log in using users and anonymous acces, altho anonymous access wont be enabled once its all sorted, when i log in all files and folders within the / directory are visible, but any virtual directories that i've created can't be seen, but they are still accessible, so if i type the dir name in it'll easily go there, but the ftp client wont list it. i've looked thru all the stuff like properties and things and cant find anything. Anyone got any ideas?

cheers, ronnie