Issam, you are not really trying... Understand that this is indeed a great community, although we cannot promote nor support warez. I am also a complete noob, lol, but I always (well, 98% of the times) manage to find my answers with the basic information provided in here. For exemple, in this particular situation, start with downloading and installing WebOS Games Manager (hopefully you're not gonna ask how to do that...). Secondly, upon opening that application, you will notice that it helps you install about 25 supported games. Click on ANY of them, let's take for example Driver. It should tell you "IPK File: Not Found" Well guess what, click on "Find IPK File..." and what does it tell you?
"You have to download original game file...blah blah blah" And oh look! they actually give you the proper filename... A good ol' google search will provide you the rest. Have fun