Hm, I happen to be a somewhat expirienced with GML, so I might be able to help if you have problems. Because Game Maker has a wide range of variety in the games it could make, (Heck, if I wanted to, I could make an RPG engine if I tried!) it's always a good idea to post screenshots and be really descriptive with your issue. Posting an example exe. also makes a world of good to the people helping you.
~Darkblast