hmmm .. actually wish I had read/seen this thread earlier!
I have been playing with the AIS site for some time, and usually with Win XP/IE, but running webwasher to remove ads, speed up net access and filter cookies. Getting the cookie filters right was OK, but I couldn't get menu access until I also allowed the javascript access to the cookies on my machine. It took a while to work this out, cutting and pasting urls from the source code an so fourth to decide on what was wrong.
Perhaps their logon page - the first one you see - should advise that access isn't possible without IE or Netscape, with cookies for the site allowed, and java filters off?
Once you get it working, it's not bad. Similar to Tinny, I didn't get an error message when I also used a 1 in the briefing ID field - which was frustrating - but today I did get a popup error message when I used my name? I guess that is a fix. Well done that man!
A briefing update page would be a good thing - log on, enter your ID number/whatever and get just the updated Notams.
Why the CAA consider the Q field as some sort of secret, I will never know - always has been available in Oz. What do they think they are protecting???
Linked weather from the site along with the Notams seems an obvious "wish list" item. It's pretty poor when you get better service for free from other countries' sites (no logon required, full text, linked weather etc etc) than you can from the "home" site.
P.S. Why does it take three pages to get to the UK AIP, when all of the interviening pages are simply the same link repeated?