QUOTE(Ghost_fang @ Jan 22 2008, 04:37 PM)

I'm not sure what I did wrong, you tell me please. I made a mesh, got it textured, put it in oblivion with construction set, started oblivion, I see it, its there but i cant pick it up. I think its collision. IF it is tell me how to get collision on it, do I do it in blender or Nifskope?
Yes, this is related to collision data.
I'll assume you're talking about a longsword since you didn't say what it is.
Take an existing Bethesda mesh/NIF that is very similar to yours (such as the Steel Longsword). Rename the steel longsword to the filename of your final mesh (as this will become your final product). Then open the steel longsword in NifSkope, delete the NiTriStrip branches. Open another NifSkope window and load your model. For each NiTristrip (actual piece of the model), select Copy Branch and switch the the Steel Longsword, right-click the Root NiNode and select Paste Branch.
Be sure to enable Havok to see what the collision box/cylindar looks like. If it fits good enough, your done...otherwise you might need to tweak the size/position of the collision data.
LHammonds