Hello thenokiottos, I'm also italian and I have got a lot of rips (also repack signed P92 or PiPPoNe92). Then, if you would like repack games, first you must
install the entire game in your PC, so you can compress the
installation directory (in C:\programs files) it with your right sequence:
1. combine files together using "arc -m0 -dm0"
2. process archive with precomp
3. process output with srep
4. compress output with "arc -mx";
After this, you must save registry game file! Because if you would play in an other computer, it will know installation information of the game. So, go to start>in the search bar write "regedit">HKEY_LOCAL_MACHINE\SOFTWARE>game registry>dx mouse>export.
Now you can make file .bat that automates all extract operations.
Finally, you can use innosetup for generate an setup of your game

P.S. Examples of my rips are:
Race Driver GRID (ITA) *Full-Rip* [PiPPoNe92]
Demigod ENG *REPACK* [P92]
Men Of War ITA *REPACK* [P92]
Need For Speed UnderCover (ITA) *Rip* [PiPPoNe92]
Fifa 09 (ITA) *Full-Rip* [PiPPoNe92]
Conflict Desert Storm II (ENG) *Full-Rip* [PiPPoNe92]
Worms 4 Mayhem (Multi5) *Full-Rip* [PiPPoNe92]