The easiest way would be to flash it with the Cricket v3c monster, but you will lose the music player and memory card.
But yeah, if you follow those directions, your v3m will be sexy for Cricket.
MASSIVE site of PDA apps for FREE download!:
http://www.pda4x.com
It's very well organized: You can request software and there are threaRAB specifically for fulfilled requests.
I found Picsel Browser 1.0.5 there! (Masked)