it is still blowing up like every 3-5 seconds, or now its normal fire??
it doesnt blow up like a grenade anymore, the explosions are molotov explosions (they set you on fire)
you have to use firetrucks to make the explosions stop then have firemen run in and extinguish the fire sources...
How to post pics withut you character in it?
/phone -> Camera
then press F7 to hide chat and then take pictures with the camera.
they will save to "...\My Documents\GTA San Andreas User Files\Gallery"