Cookies and tagging eMusic downloads

I have a subscription to eMusic where downloaded classical tracks are frequently not tagged with the some of the meta-data displayed in the album page. So I'm writing a script to grab this data.

While debugging the script, I discovered that using the same URL, the html page served up to MP3tag for any album is different from the page served up in Firefox when I'm logged in to eMusic. The log-in information in the cookie must be the reason.

Is there any way to use the cookie to make eMusic serve to MP3tag WSF the same page I get in Firefox when I'm logged on to the site?