In a nutshell if you can't find it:
At command prompt:
# chmod 777 so-5.2-ga-bin-en.bin
It should then start a graphical login, you'll think your installing a file within windows. Sun really made it easy for anyone to install.
And make sure your doing this in X windows terminal screen. And another thing, I guessed at the name of StarOffice file name up there, I can't remember if that is exactly how they spell or named it but close, you'll just have to go with yours, that is just an examble to go by.