Method 1 - Edit the URL
Go to their Profile and simply add /app_pioneertrail to the end of the address, so for example:
http://www.facebook.com/FTVPlayer
becomes
http://www.facebook.com/FTVPlayer/app_pioneertrail
Bingo!
Method 2 - Clicking
1 - Go to their profile and look for the black arrow:
2 - Click the arrow to open up a menu of various pages and apps:
3 - Click Pioneer Trail for JUST Pioneer Trail posts!
3 - Click Pioneer Trail for JUST Pioneer Trail posts!