I think now i know what is wrong there - blender has two ways of aplying UVs. One is just for UV from mesh creation and other an actual texture application as a texture. The first one shows on UV-view but in the model edit screen, it doesnt show in render (alt + z) because the render uses actually applied textures. To apply it, you have to have an material chosen for the mesh and go to texture application tool. But best shown - look to the end of the video :
So - after making the first kind UV and loading it into the UV screen :
1 . select the UVs faces
2 . head to the "texture tool" right aside the "material tool" (you have to be in edit mode like in pic.)
3 . choose in the menu to take an image and find it there (the DDS one)
4 . its vital to choose the UV option in mapping menu !!!
Afterwards, you should see the dds texture be applied to the model even after hitting (alt + z) - in render view that is.
Once you see it in render mode, you should save the project as a normal blender file too - happens that you need to change things and forget about it, making all the steps anew.
Also, when exporting to collada, you have to check the "export UVs" option :
... normally it stores the texture anew where you saved the colada (but i had issues whyte this so better dont move the original one around folders till you got the model in OT rightly). and OT then does apply them and saves them inside the OT model directory. Obviously, if you try it multiple times ower whyte the same model, OT may not specify the dds texture in matlib - just write it inside.
P.S.: sorry it takes me so long, but had to learn it myself in last days aside other things ... have to finish my importing vids for ya ... will make the best to have them out by tomorrow for you folks.