I expect it's just a case of running it.
Go to the directory where you downloaded the .bin file to and do:
chmod +x jre..(etc)...rpm.bin
I'm guessing that will create an RPM file in that directory for you. Though I could be wrong. If it does, then the quick way to install that is just to do:
rpm -i jre...etc...rpm
obviously replacing my filename with the actual name of the file (usually you can just start typing it and press TAB to autocomplete it)