Attached Link: compose download link

thanks for the comments so far

uvmapper/ compose seem to do what I'm looking for.

So compose for example. I downloaded it, opened up the obj file with it. It does display the objects and materials. I assume I have to join the geometry vertices. When I do that it says 'has no geometry vertices that need joining'. Yeah... I'm doing something wrong aren't I?

... should I actually be using 'merge items' button.

Another thing:
It seems it's the materials that I should be joining rather than the objects... but when I select either of the materials I don't have the 'merge items' or 'join vertices' options.

Is there a quick guide somewhere out there that explains what I should be doing with Compose or UVMapper?

thanks.