Posted: 08.06.2007 at 03.07
The manual is available here (9.5mb):
http://www.groovydos.com/Tom/430EXManual.pdf
I bought mine in HK, so didn't have the english manual. The better question is whether you are intending to use it on camera, or trigger it off camera (pocket wizards, pc cord, etc). On camera, the TTL system will do pretty much everything for you. Off camera, there are a bunch of options.
Strobist is the best site on the net for info on how to do location lighting using just a bunch of speedlights.