There are definately no tutorials like: "do this, then this, repeat until that and your finished" or something...
As a resource for coding d3d hacks i can suggest to visit the following sites:
forum.game-deception.com (most info about direct3d, but down atm)
elitecoders.org (some info)
netcoders.cjb.net (dunno about d3d, will be back in 1-2 days)
You have to be able to code, preferably c/c++ and if you want to get past hradba (at least 206) you have to make up your own things, (i guess) all public methods/sources are detected.