how come i can never download any thing from RapidShare? i get a error saying download session invalid. why everytime no matter what file it is i get that error?

wrong place for this my friend.. but i dont hav ethat issue so cant help

do i have to be a premium member or now? can i do the free thing?

no,you dun have to be a premium member, just wait for around 30 seconds, and type in the code, and press download, shouldnt have any problem.
P.S You can't download 2 files at a time!