See this tutorial. Hooking up the controller is about the same as a keyboard. The Akai site says that you don't need any special driver, but if you find that you have latency, a delay between hiiting one of the pads and hearing it, then download from the internet, install and use the ASIO4All driver.
If you search the word "keyboard" on this Q&A forum and also in the Forum, Discussion, Music Maker, you will find that this question has been asked many times, and there is a lot more help than just connecting. Take a look in both areas.