Can't see auction and such with Tapatalk :-(
Contact tapatalk support. This has nothing to do with us. You are choosing to use a 3rd party app with reduced web browsing capabilities. They also don't work on the mobile theme for the same reason.
If you are using TT you have a SMART PHONE which is by design able to browse the web and view the full site where the auctions work fine. While browsing the site in a WEB BROWSER you can select "view full site" at the bottom to view auctions.
You can also select "web view" from within TT to open the links in a normal browser...but you still have to select "full site" because most devices will default to the mobile theme...