You can use the Xbox HID Driver as long as you want, it is now freeware and totally unlimited. Games that do not support joysticks can use Xbox devices through additional software such as GamePad Companion. It installs a HID (Human Interface Device) kernel extension and works at a low-level so any game that supports joysticks can use it.
This software enables the Xbox USB gamepad, DVD remote, and other Xbox devices on Mac OS X.
