need help to change 2 fonts type

[fuala]

Hello,

first of all I want to say that the new StyleVar system is so hard to use when it's come to parts in the forums that not covered by StyleVar.

I spend all the night trying to change the font of the forums from tahoma to Arial.
same thing for the threads font, want to change the type and size.

I know you will tell me use Firebug, and I use it but after I get the class I need like"forumtitle" I don't know where to edit it and what is the right code to change the font.

so please help

out of subject this is my first post since may 2006 :P

[fuala]

I added screen shot of the fonts i need to change