how do you do an advanced search on an ebayer?

You can click on the buyers feedback number to see recent feedback or go to Toolhaus.org and run an advanced search. You can use ebay's advanced search to see what the buyer has purchased in the past 30 days. In the feedback page you can also narrow the feedback down by clicking on the tabs that say 'feedback as a seller', 'feedback as a buyer' or 'feedback left for others'.
 
I know this sounds stupid, it is probably right there in front of my nose, but how do you do an advanced search?

Click on "advanced search" at the top of the ebay page to the right of "search"

On the left, under advanced search, click either "by bidder" or "by seller"

Paste ID into search box

Check the appropriate box under the ID if you desire

Click "search"