Multiple Car Problems? Toyota Camry?

[Chris]

my car: 1995 toyota camry Le. Problems: #1 - when rebuilding the engine the front right headlight was heavily leaned on. I know there are screws for adjustments and such, but they never seem to work. Once i close the hood or hit a bump the right headlight just falls pointing straight towards the ground like 3 meters in front of car. Help? Problem # 2 - When rebuilding the engine i apparently acquired an oil leak. the issue is the oil leaks on the rear side of motor and after running down the side of the engine it drips right onto the muffler to continue to smell horrible and smoke. I believe it may be in camshaft housing? Problem #3. passenger front window cocks forward when rolled up. Doesnt seal right at the top in the rear upper corner. Any advice appreciated. Thanks