Beanbagz

I recently downloaded NAM and now it wont let me unzip the file? its saying that the file is damaged and suddern end of archive? What should i do....download it again or is there any thing i can do to open this file?? im stuck need help. I would be most appreciated cheers. )

Hey there, since were talking about this NAM i have just downloaded it just b4 there and i can not unzip this file its telling me that its currupt and end of archive?? so that means that theres files or a file missing god knows how but thats the beef im having with this download. It could be that i aint got the right tool to open it? any ideas cause i have ran out, cheers