Hello people im new to the forums but not new to modding (have done it before)
Got some problems i've tried to solve on my own but wihtout progress,
i've color checked the sprite and it seems correct but still the colors of it is like
a huge mess ingame (background is pink too)

[URL=http://imageshack.us/photo/my-images/594/rocketlaunchera000.png/]

Your image wasn't in pallete, remember that for future sprites

There's plenty of tutorials in this forums about applying the pallete,
search function is your friend, a mal-functional friend, but friendly after all.