FTP delete file problem

[K B <krbrooks1_1999 () yahoo com>]

I've seen this problem with NCFTP 2.7.1 on Solaris 8, and I wondering if 
anyone knew of a fix for this or could tell me if I'm just missing 
somethinhg obvious.

Here's what I tested with ncftp. 
I have 2 virtual users, userA and userB. UserA puts a file, then when 
userB ftp's to that location userB can delete the file that userA put, but 
cannot overwrite the file userA put (put a file with the same name). I 
have been able to replicate this problem with Unix users. Unix user "foo" 
puts a file and Unix user "test" cannot overwrite it but can delete it. 

Here are the file permissions
ls -l ftp/pub
-rw-r--r--   1 foo     staff      16184 Jan 17 07:42 test3.txt
-rw-r--r--   1 userA      ftpusers   35252 Jan 16 16:22 test.txt
-rw-r--r--   1 userB      ftpusers   35252 Jan 16 16:17 test2.txt

We have been able to do the same thing with unix users under ProFTP.
Thanks for your help.