I don't know how to get it into the Sillouette Program. Please help me. I need the Thirsty Script font and cannot figure out how to download it.

http://www.yellowdesignstudio.com/fonts/thirsty-script

wtf is the "sillouette program" ?
if it's a computer software, read this after buying the font : http://www.dafont.com/faq.php#win

Daaams, as far as I know the Cameo is a cutter so it probably needs a CAD/CAM file.

Add:

Having read a bit of the user manual, the Cameo works with Silhouette Studio which program can use any installed font on a PC or Mac.

I do it all the time on my Cameo. Download, extract, install and I don't even have to restart to have the newly installed font appear in my Nexus Font organizer and my font list in the Silhouette program.