In the tab “Active Auctions” you can see your current auctions you’ve placed a bid on. If you won any auction it will be listed under “Won auctions”, from there you also can pay the item you won.
In the tab “Bid History” you can see your all of your previous placed bids. This is a nice overview to see when did you bid what amount on which item.
In the tab “Watchlist” you can see your all of your items you put on your watchlist. This is a good option to track items and its current status even if you did not place a bid on them.
In the tab “Ending soon” you can see your all of the auction which will end soon.