I found the download link but my virus program would not allow me to use it.
A 'heuristic virus' is a program that does things that viruses tend to do. Trainers modify the memory in use by a game, so I would expect them to usually be flagged as suspicious (I've never used a trainer, or the real-time portion of an anti-virus program). The ads and other content on the Gamecopyworld site are also a red flag as far as possible virus are concerned, so your anti-virus program could have had an issue with that, as well.
I downloaded the mt-x_setup.rar file, extracted the setup file mt-x_1056_setup.exe and uploaded it to Virus Total, a free online scanner that uses multiple anti-virus programs on files you upload or URLs you enter. Zero of the 44 scanners reported a problem, so it was most likely a false positive, and you should be able to disable your anti-virus to (probably) safely download/install the trainer.
