Everyone -
I have posted a new version of the 2008 Ballparks set. It now includes Park Factors for each Ballpark, correct capacity, and correct field/roof. Again, you just need to use the parks.dat file that comes with the download. It goes into your .lg folder.
The set is on the main page of my website (The one that says "Ballpark Photos for every team.") Next, I will do the same custom work for the 3D ballparks that justafan provided. Takes about 90 minutes to do it all, so after justafans set, I'm done!
If anyone wants to contribute another ballpark set, that's awesome, but you'll have to provide your own custom park.dat file. This is tediuos work!!