hi,
what shall i do with files that have a .bin extension??
how do i install it???

Those .bin files will make a newb crazy! I know, it happened to me! Pull up Nautilus or konqueror and just double click on it. If that doesn't open it, you may have to change it's permissions to 777.

Or, from a terminal as root, 'cd' to the directory where that .bin file is located, and do:

chmod 777 yadaya-whatever-it-is.bin [enter]

Then:

./yadayada-whatever-it-is.bin [enter]