hmm, if you do not get banned, read this...
nineteen64 0.9.9 is the folder where is the emulator. can you see a purple (purple? i don't know which color is it

) icon, like the number 1964? if you get a little bit more of curiosity, you will open this file and... ta-da! your emulator is now opened!
(i'm not sure if this will work, since you did not posted your system specifications here..)
then you goto file: open ROM and browse to the folder your roms are in. Double-click on it and voila... i think you'll be running the emu.
about roms... hmm, i think now you will get banned... but, maybe you should go to
www.pdroms.de
//edit: also, another lesson: if you have any more questions, please read the manual that comes with the 1964 0.9.9 ... (btw, you should do this with EVERYTHING you download

)