If you link to the forum externally (via a nav menu or something), you can add &DaysPrune=1000&SUBMIT=Go to the end of the address and it will automatically filter it by a thousand days, which is almost three years. That would essentially be showing all topics. That's the way UBBDev uses on our Database.
If you're just using the normal forum row on forum_summary to get to it, though, I'm not sure how that would work...
---Skorpion
