Finally it worked! :) I got my carrier from Foundation 3D. Seems I was just too unpatient! Great thanks to lmckenzie for the hint :D And thanks to all who searched the hell out of the web :) Finally I got some warships in my collection too!

I managed to import the lightwave obj into poser and to combine some different parts of them to a full figure. Textures were a bit more difficult, but it worked out nicely too :) so I'm happy now!

Thanks to everyone!

321nimb