im not that good on computers and i would be scared to do that incase i lost everything...is that possible?

also..

lets say im downloading one video..during day time i will get 10 hosts and it will downloaded at about 30 - 40 kbs..and at night ..70 - 90 kbs

now if i download say 6 diffrent movies at same time they all download at this speed so at bottom it will say downloading 5 @ 300 kbs..

is this normal or if im downloading just 1 movie why doest it download at 300 on its own..

i hope this makes sense..

ps ive got 2 mb broadband and its dsl or adsl im not sure

please help