Please don't get offended but I think it needs a lot of work yet.
As karsten said, the beats volume is really high. You should lower it a bit because the sound gets distorted...
Also you should work with the samples, there are really good free sample kits around, you should give it a search.
About the tempo, it's me or the beats and the instrument speeds are different?
Maybe you shoud give FL Studio a try, I tried both and in my opinion FL Studio is way more powerful and more friendly to start than Acid.
In my experience I can't learn to do stuff like that from other people, I believe that if I learn it from years of practice I'll make my own style (and to tell the truth, my early material was way worse than yours). Anyway if you need some help I'll be glad to give you a hand with the really few I know, otherwise there're tons of forums where people will be glad to help you.
EDIT: I just uploaded a demonstration of some of the FL Studio capabilities, you should check it out. I didn't make the song, I just took a random midi, in this case Constant Motion by Dream Theater (nothing of my stuff is finished yet) and put the instruments and effects, it's awesome what you can do in 10 minutes with it.
http://www.megaupload.com/?d=JJI5YGJN
Bookmarks