Hey i am just a beginner on making html websites and i was wondering how to set up a login system and a forum/chat like they have on this website if anyone could help that would be great
In order to do that, you would need to use a programming language. In a nutshell, allowing users to log in/register needs forms linked to a database on your server. Then there's a ton of other buzzwords, like sessions, cookies and what not. That said, what you want to achieve is not possible by using only the markup language, i.e. HTML. Look it up, you'll find something useful.
even I am looking for this answer..I think there would be free designs available in the internet with coding ...if you are making it individual than you will have to learn bit of coding..
As a beginner, I can recommend 2 possible Forums script that you can set off directly, for free. phpBB Forums SMF (Small Machine Forums) These 2 are very common and easy to set up, if you already have a web hosting server running (with SQL database server). This should help you get going.