In all honesty it's pretty straight forward, there's only a half dozen steps or so, I had my ps3proxyserver running in less than 5 minutes.
- Download PS3ProxyServer
- Run PS3ProxyServer
- Find your PC's IP by going to Run --> CMD --> type ipconfig /all into the CMD window, you will want your IPv4 Address.
- Go to PS3, set up internet manually, leave everything as it was except for at "Use Proxy Server" go to "Yes" and it will give you an input for an IP Address (you put your PC's IP Address here you got in your CMD window) and use the same port as on PS3ProxyServer, 8080.
Start PS3ProxyServer, it will ask you to allow the connection through Windows Firewall, allow it. (Or disable your firewall, whatever you're okay with.) now it should work perfectly fine, the way to test is by doing an Internet Connection Test and it should say "PSN: Success" or whatever it says.
Remember that this now only works on 4.82 OFW as 4.81 OFW is no longer able to use PS3ProxyServer.