Dude,
i can strongly recommend you skip that particular whiz wheel and go straight to the real deal whiz wheels. They are MUCH MUCH more versatile
The threads:
The Kriegsmarine whiz wheel thread:
http://www.subsim.com/radioroom/show...ght=whiz+wheel
The US Subarine attack course finder thread:
http://www.subsim.com/radioroom/show...ighlight=iswas
Here is the manual that describes how to use the american one, but the german one is much the same
http://hnsa.org/doc/attackfinder/index.htm
and here both whiz wheels can be downloaded from Hitman's filefront account (hope you don't mind Hitman!)
http://hosted.filefront.com/HitmanPacificAc
I've also written a little guide for hunting using the whiz wheels on my filefront account too.