That's because they used sIFR to replace the font with a custom non-web one. The form is in html.
That page failed miserably in Chrome (SRWare Iron to be exact, same shit though).
There are a lot of good form styling options out there for jquery based forms. Honestly, you can do nearly all of the styling with just CSS, except for file upload fields cause they rely on the OS rendering. That's why you need jquery to really get everything exactly like you want it.
Here's a good start:
JQuery form plugins