unzip copy csa and fxt file & paste in
com.rockstargames.gtasa\HERE!

copy data folder and paste in
com.rockstargames.gtasa\files\HERE!
and
replace dff files in gta3.img
after this put gta3.img in
come.rockstargames.gtasa\files\texdb\HERE!

FOR REPLACE dff files no need pc just download
these 2 software from android market for free
1st
Img Tool
2nd
ZArchiver

cafe near cj 1st house u can buy online weapons from cafe