tmda-cgi error

I'm trying to install tmda-cgi on a RHEL4 system running postfix.  I 
have the basic stuff working, but when I log in to tmda-cgi as a 
non-tmda enabled user and click on the "Yes, sign me up" link, I get the 
following error:

Traceback (most recent call last):
  File "tmda-cgi.py", line 125, in ?
    Call(Install)
  File "tmda-cgi.py", line 88, in Call
    Library.Show()
  File "/var/www/html/tmda/Install.py", line 676, in Show
    Install()  # Does not return.
  File "/var/www/html/tmda/Install.py", line 373, in Install
    CreateTgz(Backup, FilesClobbered)
  File "/var/www/html/tmda/Install.py", line 106, in CreateTgz
    os.rename(SrcFn, DstFn)
OSError: [Errno 2] No such file or directory


At the same time, /var/log/httpd/error.log records the following:


[error] mod_mime_magic: can't read `/var/www/html/tmda/tmda.cgi', referer: http://www.[snip].[snip]/tmda/tmda.cgi


My tmda-cgi/skel/install/ directory looks like this:

[skel]# pwd
/var/www/html/tmda/skel
[install]# ls -la
total 32
drwxr-xr-x  5 root root 4096 Mar 28 15:53 .
drwxr-xr-x  5 root root 4096 Mar  2 09:07 ..
-rw-r--r--  1 root root 1497 Mar 28 15:53 anomalies
-rw-r--r--  1 root root   23 Mar 28 15:50 .forward
drwxr-xr-x  3 root root 4096 Mar  2 09:07 %(Parent)s
drwxr-xr-x  6 root root 4096 Mar  2 09:07 .svn
drwxr-xr-x  6 root root 4096 Mar  2 09:07 .tmda
-rw-r--r--  1 root root   84 Mar 28 15:51 .tmdarc
[skel]# cd install/
[install]# pwd
/var/www/html/tmda/skel/install
[install]# ls -l .tmda
total 20
-rw-r--r--  1 root root  719 Mar  2 09:07 config
-rw-r--r--  1 root root   13 Mar  2 09:07 crypt_key
drwxr-xr-x  3 root root 4096 Mar  2 09:07 filters
drwxr-xr-x  3 root root 4096 Mar  2 09:07 lists
drwxr-xr-x  3 root root 4096 Mar  2 09:07 templates
-rw-r--r--  1 root root    0 Mar  2 09:07 tmda-cgi.ini


Does anybody have any ideas what might be causing this?


TIA,

Paul

-- 
Paul W. Smith