Hello my Australian friend !
First of all, that has nothing to do with your brightness... putting a wrong form of those tags doesn't make anyone stupid, and I'm sure you are very clever, indeed.
It's just, in forums we use kinda different form of those tags... everything is actually pretty much the same, but some things are little bit different. I've noticed your signature and I was wondering, maybe you are just too shy to ask...
Anyway, I'm glad I could help !
Stick around and if you need an avatar, just PM me... ok ?
Regards !
Sasha