The way the manual works is that they ship with a standard FS manual and a supplementary manual is included that displays all the new parts and steps in the build procedure.
If you visit Kyosho's site, you can download the FS2 specific manual (it's about 4-5 pages).
LA255's are incorrect for the car... LA272's are what you need.
Edit: Here's the manual,
http://www.kyosho.com/jpn/support/in...X-5_FS2_IM.pdf