Actually there is an artist who made a tutorial on tileable textures in 2.5 and how to make a normal map with them too. here... http://vimeo.com/2228433
This is really great oppurtunity. yhis is my link regeliart.blogspot.com and please contact me on [COLOR="rgb(255, 250, 205)"]neetudabas1991@gmail.com [/COLOR]
YES with 2.5 update it added the funtionality to take screenshots in game... unfortunatly old games have to be patched to take use of this feature kind of a bummer.
As what I remember Optimize is an ancient anachronism from around 3dmax 2,5 . Messing UV and normals completely contrary to Blender . Not sure why it's still there.