Do you get pop ups on the board's main page or a particular thread or something?
I've just visited your board but didn't recieve any pop ups
Do you host any of your boards images on websites instead of in your boards File Hosting? If so, sometimes websites will throw a pop up at a URL when an image is loaded
If your board is on the variable plan, you might want to check your computer for scumware, which can "mess" with your browser, and cause you to see popups when the page you're loading doesn't actually have popups on it.
2. When an administrative change is made I am not receiving any email to confirm
Sometimes ISPs or other Email providers like Hotmail have a spam filter that emails get caught up in
Have you checked your junk(bulk) email folder (if you have one)?
Also, If you're using hotmail they no longer allow HTML emails - you can either forward that email to another account you have somewhere that does allow HTML email or change the style of email from HTML to text in your settings in your User CP.
3. The siggy's and avatars are not changing, well it takes like 3 days for a change to take place!
Sigs & Avatars should be updating fine now