Only other thing I can think of that might be the difference is what forum style you're using. If you were previously using the mobile style and the iPod is using the default, that would make for a very different display.

Here's a screenshot of the forum homepage with the default style.
Click image for larger version.  Name: Default Style.jpg  Views: 61  Size: 164.5 KB  ID: 6979


And here's a screen shot of the mobile style.
Click image for larger version.  Name: Mobile Style.jpg  Views: 60  Size: 121.8 KB  ID: 6980


If what you're currently seeing is the default style and you want to see the mobile style, simply scroll to the bottom of any page on the site and in the bottom left corner (in the dark blue bar) click on the drop-down menu and select the mobile style.

If what you're currently seeing is the mobile style and you want the default, scroll to the very bottom center of any page and click on "Full Site"


As for staying logged in, as Robinhood noted you have to enable cookies for the site to keep you logged in.