Almost everything's working. I'm down (no pun intended) to the download manager. Looks like I need to use the HTTP_Download class in PHP, which is part of PEAR, which is a collection of useful stuff for PHP.

And I can't find the goldurned thing on my server. Looking at the PHP config on my site, it appears that PEAR is installed, but I don't for the life of me know where the include directory for it is.

So I've got a tech support message out to the monkeys at my ISP. Hopefully I can get the rest of this thing hacked together soon.