Too much code! That's a lot of code to expect volunteers to parse for xp.

Here are a coouple of thoughts. Do you have a working, and tested, example of code that uses a cookie jar to use something similar to you want? (Not necessarily on your target space, but anywhere.) If not, you need that first. (Maybe you need to google around a bit, or use supersearch on perlmonks.)

If you do have it, comment out the line(s) that do the cookie jar stuff, and verify that it doesn't work. (So you know that the site really relies on cookies.) Post that, with the comment "This works." Then post your code (should be similar to the working code, but for your target domain) with the comment "This doesn't work." Maybe then the solution will be obvious, but even if not this will help better isolate the problem.