Wow, way to necro an old topic that had previously been necro'd. This is like the unkillable zombie thread.
As for the problem, what you are experiencing is not what the OP was running into, he was still using the old downloader instead of the newer one that had recently been released at the time (the old downloader was disabled, making it impossible to log in with it).
I'm assuming that you are already using that current downloader, given your registered date. Are you entering your e-mail address and password correctly? The downloader has had problems with e-mail addresses that are not all lower case in the past, you might try entering yours in all lower case (if you weren't already).
Post edited January 26, 2012 by cogadh