rofl..search maybe? look around ?
I can say you how I make (but moste make it with a pk editor lol )
first you need : winrar and the DAT-Tool
adding stuff (f.e. e.pk) :
make a new .txt document and call it like you need it. Writte or copy or whatever you want to do and save it. Now drag&drop the s123456.txt over the TXT2DAT.exe of the DAT-Tool. now you get s123456.dat.
now open the e.pk with winrar (don'T have to change the .pk to .rar ! winrar can open it with .pk

) and push drag&drop the .dat file into it and enter your password. READY
changing stuff:
open config with winrar, unpack your .dat you need (for you xlate-e.dat) than drag&drop the .dat over CONFIG_DAT2TXT.exe and now you can open the .txt file that appears. Change your IP, move the txt. back over CONFIG_TXT2DAT.exe, open config with winrar again, push the slate-e.dat (the new on !) in the config [Enter PW !!!] READY