B -->
[b] [/b]
I -->
[i] [/i]
U-->
[u] [/u]
Youtube -->
[YOUTUBE] [/youtube]
Use the end code of the youtube link, e.g. with this great link -
http://youtube.com/watch?v=eBGIQ7ZuuiU - use only eBGIQ7ZuuiU
Image -->
[img] [/img]
Url/link -->
[url] [/url]
Change font color -->
[COLOR="name of color"] [/color]
Color names can be "black" "red" "blue" etc. But there are other more complicated names. You won't need them.
Font size ->
[SIZE="insert number from 1-7"] [/size]
You can also change the font but that is not necessary, and quite frankly annoying.
Those are the most basic things.
Probably not as good as having the toolbar working.
I hope this helps