That site looks great!! Even though some of them aren't Celtic, free calligraphy fonts are sometimes hard to find. Here are some other sites on fonts (Mediaeval and others) which I have found and use constantly:

www.dafont.com
fonts.lordkyl.net

Lord Kyl has a very extensive selection of celtic and mediaevil fonts. Dafont also has other historical fonts such as Greek, Roman and Oriental.

If you want to insert a link into a message like this, the following coding may help you:

<a href="URL OF WEBSITE HERE" target="_blank">NAME OF WEBSITE</a>

So your example for the Kingthings font page would be:

<a href="http://mysite.wanadoo-members.co.uk/Kingthings/fonts/fonts.htm" target="_blank">Kingthings</a>

and it should end up like this:

Kingthings

Also check to see whether the little drop down menu next to "Body of Message:" is on HTML not Plain. If it's selected on Plain, then it will ignore all the HTML coding that you have typed.

P.S.: The blank="_target" is optional. This piece of coding will open up the link into a new browser window. Handy if you don't want people to lose where they are. If you don't want the link to open up in a new window, then omit that bit of coding.