I realize that by clicking on the IF link in the RTE you can get a listing of codes, including examples.

I was wondering that since to the left of the RTE box there is a lot of white space, under the "Message:
Please post the contents of your message in the box opposite", might it be worth it to add just a straight listing of the codes?  That would prove easier to use then having to click the link to the popup each time you wanted to insert one, since the majority of site visitors won't be posting enough to memorize the tags.  This might be especially helpful for forums that disable HTML posts and only allow IF code.

I have not looked at the available space under different resolutions and am only commenting on whats available at 1280x1024.

Wow - I could kick myself. Great suggestion Jimmy. This would certainly help.

This will be available in the next couple of days if not later today at some point

Explore our products...
http://demos.instantasp.co.uk/

BTW - i'll be providing an option so the admin can choose which tags appear within that list to the left of the post area I think displaying them all would be to much however the admin can choose to display the most common tags

Explore our products...
http://demos.instantasp.co.uk/