Ok, edited again. I make your text be the link. Let me know if that's OK.
I think the reason it's not allowing you to make the edit is your status as a "new" member in the system. I don't have direct rights to edit that, but I can request it from the admins. Alternatively, it should happen automatically sometime after your 10th post. You'll notice everything goes into "moderation" when you post - that should be removed also once you are "promoted".
So, post more. I'll keep an eye out for them and approve them when I see them. Hopefully you reach that magical number and the system will automatically promote you.