Can someone help me. I am trying to laod a custom track and am not able to. I have DL about 10 and none of them work

They show in the list but when i click it says something about no resources.

What am i doing wrong?

Firstly it would help if we knew which track you were having trouble with. Someone else may have had a problem with that same track and if they have they can tell you what they did to remedy the problem but the first thing they'll probably suggest is that you uninstall what you have, redownload the track and reinstall it making sure you follow any and all the instructions on either the download page(s) and/or in the extracted file. Also be sure and not rename any of the extracted files and that the directory structure is preserved during the extraction process.

Then we'd need to know what “DL about 10” means. You will find it is preferred to write things out in full on this site.

And you'll need to provide more information than “something about no resources.” What exactly did the error message say. Without this information no one will know what to suggest to you that you are doing wrong.

Finally, before uninstalling, you might want to test your new ride in a blank, empty new park. A huge busy park that is running full tilt and flat out maxxing your CPU, RAM, graphics card and game engine is not the place to test CS, CTR's or CFR's. That you indicate the error is a resource error suggests this may be the problem. Incidentally if while working on a huge busy park that's running at full tilt you attempt to use either CS, CTR's or CFR's that you have previously used without any problem and are suddenly getting resource error messages then pause your game and save your park immediately – you've thrown everything at your game that it can take and RCT3 is about to crash.