Anthony,
You shouldn't have to do much of anything for your signature to pop up on your posts. I just became a member today, but have been using similar forums for fishing, etc.
I looked at your profile and could see that you created, and saved, a signature with a quote. So that part is working...
So... I think that just leaves "options" as you create a post, or reply to a post. As I'm typing this reply, I can see a second box below this one (in which I am typing.) It has a blue banner that says "Additional Options." Within that 2nd box there are options you can check, one is "Show your signature." Make sure that is checked.
Are you using a cell to access this? Perhaps you didn't see that area because it's below the "submit reply" or "submit post" button. You may need to zoom out to see that.
I hope this helps. (Go ahead and reply to this message, zoom out to see if that option is checked.)
If that's not the problem...it must be some weird technical thing that admin may need to check into.
Good luck!