My appoligies, I did not alter anything in the plugin except the fix. (wanted to help the people out that did not know how to fix the plugin)
Because the plugin did not get any update I thought the author did not update the plugin anymore. (last update was a long long time ago)
Next time I will pm the author first.

I Guess Whaat does not update this plugin anymore.
So here is a fixed version, this will solve the problem with Blender.

Tested with blender 8, LithUnwrap and Blender.

Version 0.3 works with Blender en SU8

@mitcorb said:

Hi, martinvz:
This is a very fine image and concept! I like the colors and even the soft effect on the edges.
I note that there in the floor middleground is either a reflection or a ghost object. Not as noticeable, except on "superzoom", the texture matching especially in the wood grain at the curved end of the bar. However, this may be intentional as if matching panels. But matching seams on a curved surface would place extra stress on a veneer applique and would tend to delaminate in real world.
I appreciate the high level of lighting to bring out the darker elements in the space, but, on my screen, the detail of the light structure is somewhat ambiguous.

Of course you ment Natato.

Nice, I like it

Well I tried the solidsolver plugin but that does not help.
I found out that with ultimate unwrap using the lscm unwrap function it results in a correct mapping, but i do not have the money for that tool
Can anyone help me out?

What kind of plugin must I look for? Is it a sketchup problem or a problem with the uvtools plugin? I've tried all kind of stuff in sketchup, redrawing etc but I could not get a good result. Would be great to know what causes this issue.

Can someone help me out with this model.
I use UVTools to export the UV map and Lithunwrap cylindrical uv mapping and it messes it up.
http://sketchup.google.com/3dwarehouse/details?mid=c33a0f5cf2278f2998fc1d0403f6ad0

Great plugin.

Im not sure if the author still updates the plugin, but I found out it did not import in blender.
This is because of a small typo in the plugin file at line 374.
Fix the typo and blender will import without a problem.