This isn't typically the kind of question that you would need to pose to LEGO directly. Besides, there's not been a real LEGO employee presence in the Ask LEGO forum for a while now...as such, I've moved your topic to the appropriate place. Please review the various topics in the Start Here
forum and make sure you review forum-specific instructions for places like the Ask LEGO forum. Thanks and welcome aboard.
Looking at the instructions for TIE Interceptor & Death Star, it seems pretty straightforward: tiles to wing pieces, click hinge/slope/bracket assembly to inside if wing pieces, click hinge male (1 finger) to click hinge female (2 fingers). What exactly are you having problems with?
This is a review and not so much an instructional video
, but there are some relatively close-up shots of the assembled TIE you might be able to use for reference.