HTML in Outlook Express 5

[FATFRANK]

I'm relatively new to code/html. I've created 3 websites.
I would like to create html emails to send to my clients etc. (you know the one's with the pictures/animated gifs you get sent from software companys etc. Is it just a case of inserting the code into the message window or do I need an attachment of some kind. I can;t finf any help topics on this anywhere so any help anyone could throw my way would be extreemly welcome.
Just in case you need to know I use an Aple Mac G4 running OS9 (not that this should make a difference).
Cheers.

[justame]

fat...
/me could be just a mistaken® 'cept /me thinks that you make the 'html' page...n' upload the 'graphics' to your just a server/domain® n' thennn save the html in your 'stationary'/'stationery' folder...n' thennn just a select® it to be your 'default'...:O)))
just a tleast® /me thinks thattts how doc does it...lol...

/me just a reminds® ya shes NOTTT programmed to think...