My Uvs are disapearing in the editor
 

I map out the UVs and then I map one more part then i move it into place then when i deselect it all my other UVs are gone. How do i get them back? Only the one uv map is still there the newest one, all the others are gone.

Help?

If you want them all on one UV map then I found that I needed to combine the meshes (both objects selected and do polygon -> combine). They will then all happily sit on the one UV map.

Otherwise you might have created another UV map (set) with some bits on that one and some bits on the default UV map.