now in these day like sendspace n megaupload they alway nt allow u download more then 1 GB size n more than 1 file i just want to ask is anyway to cancel or crack it then u can download the file again by doin sumthing ??? and can download nt need to wait for 1 day to reset the thing ???

I think they probably recgonize a user by his account id and the IP address.  Maybe you can get around that by using proxy and signup different accounts?  Just a thought.