This community is NOT shit. Also, just because people do not reply to your topic/post does not mean that this community is shit. Wanna see what a shit community is? Wikia's GTA Wiki is an example of a shit community. They put money over the community, and they at one point, plagarised content from another GTA wiki, Grand Theft Wiki.
The 120 views you got for your post (and counting) are mostly just guests, people who are reading these topics, but do not have an account or are not logged in. They cannot reply to your topics because of that. Also, these forums are mostly inactive, because the last GTA game was released at about 3 years ago. As this is a GTA forum, there is hardly anything to discuss at this point. However, once GTA V gets released, or their second trailer gets released, I can bet you that these forums will become very active, and somebody should hopefully come over and help you solve your problem.
In fact, here is a very easy way to get GTA San Andreas: go on Amazon.com or eBay. You can get San Andreas off these sites for a pretty reasonable price.