First of all, thanks everybody for taking the time to look at my work. And for your nice words too!
:)

About the fonts... I really had an hard time with them. You see, Flash has one big problem with fonts: it just applies "antialiasing" to everything, fonts included, making them very hard to read unless you're using very large characters. But I didn't want text to be "important" in my site (there's very little of it) because of the subject.
So I had to learn how to use pixel fonts in order to prevent flash from blurring them. And that was another issue, as nobody seems to know how do they work perfectly, I've lost a lot of time doing reserch and I've read many articles and tutorials but the informations I got did not work for me.
Anyway, I learned how to use them at last... so if anybody will ever have a problem with them... ask me! ;)

So, back to the answer, I was forced to use pixel fonts and because they are working only in fixed sizes (like 8px) I had to "chose"... that size.
The result is a very sharp small character that sometimes can be hard to read, but I can assure you that normal text would have been much worse.

Hope that explains

thanks again!

*For DHolman: thanks for your advice. It's been corrected! ;)