Very nice, beautiful skin. This is a tough one as the transition between the wings and the fuselage is not an easy job, at least not for me.
Looking forward to the bump maps!
Looks like the mig2_t.bmp is used for the wings. Where's the fuselage texture sheet?
Normally when the bmp does not use the _t, then alpha is used for transparency as with a prop or glass texture.
However in this case, since the _t is used, my bet is that the model's materials for fuse and wing have transparency set in the model.