trouble loading wp-admin…

…through FTP when upgrading WordPress.
FTP seizes up when trying to load and cycles @ “ms-sites.php”

It says this:
[17:14:06] Possible file size discrepancy. Please contact the technical support.
[17:14:06] File size mismatch.
[17:14:06] Transfer failed.
[17:14:06] Operation End
[17:14:06] Operation Begin
[17:14:06] Remote file exist check: “ms-sites.php”.
[17:14:06] MLST ms-sites.php
[17:14:07] 250-Begin
[17:14:07] type=file;size=0;modify=20100808001519;UNIX.mode=0644;UNIX.uid=960;UNIX.gid=956;unique=803g1800334; ms-sites.php
[17:14:07] 250 End.
[17:14:07] Source File: Size=33260, Time=2010-08-07T16:44:28
[17:14:07] Destination File: Size=0, Time=2010-08-08T00:15:19
[17:14:07] RecentTime=2010-08-08T00:14:06
[17:14:07] Rule “IF Destination Time=Recent AND Size=Smaller AND Transfer=No Matter THEN Resume” matched. Action=”Resume”.
[17:14:07] PASV
[17:14:07] 227 Entering Passive Mode (207,191,228,74,217,69)
[17:14:07] Opening data connection to 207.191.228.74 Port: 55621
[17:14:07] STOR ms-sites.php
[17:14:07] 150 Accepted data connection
[17:14:07] 33260 bytes transferred. (416 KB/s) (78 ms)
[17:14:07] Transfer failed.
[17:14:07] Operation End

Any ideas???