Howdy!
I am trying to make a swimming pool by using textures instead of geometrical tiles, the problem is that the texture becomes distorted. It’s not a normal rectangle pool but a more banana like shape.
Like this:
Could someone please give me advice on this.
You know, I think there’s a script that does that kind of unwrapping in 2.43
Do you happen to have the name of that script too? 
I am not really sure what type of uv-mapping I could use.
Those kind of bends are not so difficult to do by hand. You mark the Seams right and they will map flat in the UV Editor. Archimap script is in 2.42a under UV in the Scripts window. There are also a few “Tiles” Plugins that’ll work here:
http://www-users.cs.umn.edu/~mein/blender/plugins/texture.html
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It does work fine now with that script, though probably there must be a smarter way to put all those uv-islands together than by hand. But oh well, thank you all for the help.