I know this is a very basic question but right now I'm on the Free Agency advancement page and looking at round 6 and there is nothing that I can click on that allows me to sign a contract. I have clicked on the Bid for a player link and also tried to click on a player and go to his contract tab, still nothing. What am I missing?

Click the advance arrow to go to the free agency screen -> top left on that screen click "bid on free agents"

If that doesnt work - you are likely not logged in as a team -What kind of league do yo have (sandbox/career/online)?

Are you using custom rosters? (i.e. go to search -> select free agents -> are there people there?)