okay first of all what are portals, emulators, and exploits, and whats the difference in between all of them? also, i was trying to visit ebay on my psp (2.5) and it started to load all of the pics. and then it said "not enough memory" and stopped...it loaded about half of the pics(on the homepage) does any1 know why it did that and how to fix it? i visited ebay once before and it was fine...but this time...yeah

thanks

P.S. ill probably remember more questions that i had so ill just add them below...