i did not make this patch but i believe it is a patch for ip4 not 4s,i posted a patch for 4s 5.0.1 elsewhere in the forum.but you dont need it to write a prl to the phone,you just need it to do about anything else to it though.
to answer the second part of your question the sprint spc is not set to 0's its random,its not needed with the verizon iphone because by default it is already set to 0's and for ota to work with cricket you will need spc set to 000000

also tinypwn from what i understand has kinda been put on hold i am sorry to say.