Welcome to CSR Nation
If you want to do an actual discussion on the front page, below the last discussion, sort of hard to see, but it's in blue and it says "Add a Discussion." You need to hit that and then a box will open for you to add any discussion you want to add.
You need to hit the tab to actually "Join the Group" first and then you'll see a tab to "Send Message to Group" so look for that tab. You won't see it till you join the group first.
Welcome to CSRnation!! If you're looking for more work, don't forget to hit on the Cover Depos tab on the top of the main page, hit the red dot on the map where you'll cover work, and then click on the tab to "Join the Group." Once you do that, your email address will be saved with everyone else's email address and you'll receive email blasts of jobs in your area. You just contact the agency directly from the email with their contact info.