Okay, I couldn't figure out how to get the crack to work, but the steps below is basically what you have follow to get your bot running. Read the link that cowkiller posted for troubleshooting.
Rename scripts/starter_.d2j to scripts/starter.d2j
Open scripts/starter.d2j and make the necessary changes
Go
here and download Pwnage Pindle 2.12. You'll see "index" as the file name when you click download. Add ".zip" at the end of "index" and save. Unzip everything in index.zip to the "scripts" folder.
Open scripts/default.d2j and you'll see something like the following
case "DefinitelyASorc":
load("tools/njsb.d2j");
break;
Change it to
case "DefinitelyASorc": // change DefinitelyASorc to the name of your sorc
load("bots/PwnagePindle.d2j"); // this points to the bot you want to load
break;
Save and exit scripts/default.d2j
Log in your account, choose your sorc and remain in the lobby.
Run d2jsp.exe. Click "install/update"