As you upload your coins to your swap list, scroll to the bottom of each coin's page.
Look where it says “See the details of the coins available for swap”.
That will show a list of members who have the coin to trade, grouped by date and mintmark. Some have pics and grades.
When you find a coin you like, contact those members and ask for a trade (and ask for pictures!).
One caveat: you won't always find what you're looking for in the grade / date / variety you want.
In that case you can put a note in the forum and you might find it that way, worked for me a few times!