I edited the pow_energy cog, and simply replaced : print "energy cells" with "5.7mm bullets", but it didnt work . other modifications I made did work, but not that, what else must I change in the cog?
Also, where do I find the controls for ammo, in the ammount each weapon has and what weapon shows what ammo in the screen.

if(getThingFlags(source) & 0x8){
  do her}
elseif(getThingFlags(source) & 0x4){
  do other babe}
else{
  do a dude}

Try editing the text in jkstrings.uni and/or cogstrings.uni to chage the text. The weapon cog just uses the messages listed in these files.

Most of the weapon ammo controls are in the items.dat file.

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dBcLiCk (The Spaman)

Just one final thought, how do I know the number of the cog that I asign the bin to, or the writing to?
eg
"COG_00130" 0 "5.56 bullets"
How do I know what number the cog is?

if(getThingFlags(source) & 0x8){
  do her}
elseif(getThingFlags(source) & 0x4){
  do other babe}
else{
  do a dude}