.iso file problem

I'd like to start off by making it clear that I don't know anything about macs. I've always used PCs, and i'm just baffled right now. Additionally, i'm not too sure if i'm posting in the right place, so please bare with me.

I'm a pretty big gamer, and I don't have any games to play. I was looking online at whast games were Mac compatable. One game I found was fallout 2. My brother has the game, so I had him transfer it to me over AIM. I have it now. It's a .iso folder. If I double click on the file to open it, it says, "the following disk images failed to mount." and for reason it says, "no mountable file systems." My brother told me to try Daemon tools, or ISO blaster. I couldn't get either to work.

I honestly have like, no idea what i'm doing. I just want to play the game. All I know for sure, is that I have like a 700mb .iso file on my desktop. I just want to open it and install it and play it or whatever. If anyone knows how I can do this, that would be amazing. Really, I would appreciate it.

Thanks a bunch

 

.iso

It took about 4 hours.


Yeah, I'm also not a big fan of stealing software. But it doesn't really bother me in this case, because I already bought the game. I bought it when if first came out, and it wasn't mac compatable. So I was hoping the version my bro had was mac compatable. I figure this way, I already contributed to their funds. The same thing happened with Diablo 2 as well. I have an old version, pc only. I want to play it, so now I have to buy it again. Sucks.

Anyways...

When I do the open with command like you suggested it says to open it with Diskimagemounter. But opening it with that program is the same as if I just double clicked on the file. It does the whole "The following disk image failed to mount."

So, i'm stumped.