Copy jump.cgi to download.cgi and copy Jump.pm to Download.pm. Then in the download.cgi file, find the line that looks for Jump.pm and change it to Download.pm.
You will then need to edit Download.pm so that it looks for the Download URL field instead of the regular one.
(I'm not sure that's all but it should point you in the right direction.)
You will then need to edit Download.pm so that it looks for the Download URL field instead of the regular one.
(I'm not sure that's all but it should point you in the right direction.)