original post removed considering there's now available thanks to the scripting work of Vektorboson a proper OFP P3D importer and exporter for Blender 2.49b and 2.66a
Available and fully working , coming directly from Vektorboson astounding forge of wonders .
UPDATE : Blender 2.66a Importer and Exporter for OFP P3D format
You can download his addon here for the latest version of Blender :
And i updated the simple tutorial for the addon with 2.66a images and procedures :
Blender 2.49b Importer and Exporter for OFP P3D format
You can get the Blender 2.49b scripts from Vektorboson website :
Get the tutorial with it that explain steps by steps how to use and the descriptions of the features.
If you have never used Blender, it's the occasion for you to download this more than awesome complete modelling/animating open source package with more features than you would dream, there are thousands of very well done tutorial (like this great one) to get you on level with the application.
Don't be afraid by the interface, it is much easier to learn and use than you think.
We could use this thread to help&hint about Blender if someone has questions.
Those Importer and Exporter scripts are only for use with Blender 2.49b
Available for download here :
Note : the latest version of Blender , less feature complete than 2.49b for now, is Blender 2.57b that you can get to learn the new interface too (but can't use Vektorboson import/export there) for when the new Blender version will become as feature complete as 2.49b.
You can have on your computer both version of Blender installed without a problem, they don't conflict.