I created this object and in Milkshape looks perfectly but in TSRW looks absolutely weird.
Since in Milkshape looks ok I think there may be a problem with TSRW.
Anyone knows how to solve this problem?

Hrmm, it might be because in TSRW you can change the tiling of the object manually by changing the numbers, if you have a perfect UV map that is completely square then you should be able to make the tiling the same number on all parts of the mesh, that ought to fix it