Hi Tracy Andrews
Welcome to the forum.
I can see why the smileys can be confusing. When you click on one at the top a set of characters are inserted into the text you are typing. Here are some examples:
:) = Smile
;) = Wink
:D = Cheesy...
Once the message is posted the system will display these sets as smiley images. If you want to make sure the text look the way you want it to look, click on preview and your message will appear at the top of the page.
Other things like bold, center, etc work with tags. A tag is placed in square brackets and there is always a start tag and an end tag. Here is an example.
This is [b]bold[/b] and this is [u]underlined[/u].
Will look like this: This is
bold and this is
underlined.
Getting to old for technology, perhaps, but to old to enjoy horses,
never 
Right?
Once again welcome to the forum, enjoy and have fun.
PS. AHS is such an important subject, I think I'm going to start a new topic on that.