Spent a few mins tidying up on the site the last few days. I’ve added a little error handler which emails me whenever anyone tries to mess with the querystring (read hack the site). So far it’s held up pretty well.
I also re-validated the RSS feed against feed-validator.org and you can now check that using the little button on the bottom left of this page.

Lastly I added a new pagelet called “Top Downloads” which is essentially a bar graph of the top 10 downloads on the site. It’s updated dynamically so as stuff is downloaded the items and totals change.

In doing this I noticed that Firefox doesn’t support the ALT attribute of the Image tag. Some googling for “Firefox IMG ALT” reveals that there’s a big flame war going on over this.
Apparently tooltips over images (for accessibility) should use the “TITLE” attribute of the IMG. This is used in Firefox, correctly adhering to the w3c spec. Internet explorer will use the ALT text if TITLE is not present. So which is right? I dunno but I threw both into the pagelet to avoid any confusion.