I cant get my ps3 to hook up to my internet

Use the PS3's Internet connection test under Systems Settings to determine if you've access to the web. If this test fails you will need to do the following:
1) Reset your DSL modem.
2) Once the cycle is completed, run the Internet Setup under Systems Settings within your PS3.
3) Follow the instructions you should be able to gain access to the web and online game play.