@Krystiandevibed You're misunderstanding the nature of the requirements. You need to be running at least OS Lion (which you are), AND you need a processor equal to or better than an Intel Core 2 Duo 2.4 GHz (yours is slower), AND 4 GB RAM (you only have 2.5 GB), AND a graphics card at least as strong as an Nvidia GEForce 9600M or an ATI Radeon HD 2600 Pro (yours doesn't come close) with at least 256 MB of video RAM (yours has 64 MB, which is shared with your main memory). The fact that your graphics card drivers are part of the OS does not make the graphics card itself sufficient.
As for whether this hardware ran TS4 before, it's certainly possible. The demands of even the base game increase as more features are patched in. But the other consideration is that the requirements to run the game are higher in mac OS than in Windows. Some of this has to do with differences in the operating systems; some of it may be due to how the game is programmed differently for each platform. Regardless, it can't be helped.
I don't know who or what from EA told you that this computer would run TS4, but the official EA help site itself says that your specs are below requirements. Whether there was some confusion on EA's end, I have no idea, but that doesn't change the fact that your computer will continue to refuse to run the game. There's nothing else you can do.
