Is there any way how to limit the number of backup files generated each time I build? Space on the server is limited

You could write a shell script or Perl script that deletes the backup files before the new ones are built.

SHELL example:

# Delete Backup Files
rm /dir/subdir/yourdir/yoursubdir/cgibin/links/admin/backups/*

Then schedule this shell script to run on a nightly basis to remove the backup files.

Or you could download all your backup files to your local harddrive and delete the old backups in your server.
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Buh Bye!

Cheers,
Me

thank you, i will see what i can do...