Do this: Type in terminal:
/var/theos/bin/nic.pl
That'll start the New Instance Creator. Select option 5 and type in the info:
DiDAs-iPhone:~ root# /var/theos/bin/nic.pl
NIC 2.0 - New Instance Creator
------------------------------
[1.] iphone/application
[2.] iphone/library
[3.] iphone/preference_bundle
[4.] iphone/tool
[5.] iphone/tweak
Choose a Template (required): 5
Project Name (required): PROJECTNAMEHERE
Package Name [com.yourcompany.projectnamehere]: com.iosgods.projectnamehere
Author/Maintainer Name [System Administrator]: DiDA
[iphone/tweak] MobileSubstrate Bundle filter [com.apple.springboard]: com.gamecompany.gamename
[iphone/tweak] List of applications to terminate upon installation (space-separated, '-' for none) [SpringBoard]: -
Instantiating iphone/tweak in projectnamehere/...
Done.
DiDAs-iPhone:~ root#
And now you have started your first project! Edit the tweak.xm and add your stuff and then compile. If you want to make a Patcher then CD into your project folder and run the NIC again but choose number 3 this time.