PSR500...How do I work it???

Please Please help me...I am just starting to sing and a few record labels want a demo. I got this keyboard years ago and just pulled it out to start playing with it...Is it good to make some tracks on?? how do i record it? Please if you can help me in any way !!! Also...is this a good keyboard? Or if anyone has any tracks that they think I might be able to use..e-mail me. i sing R&B though. or kinda of a britney spears, mariah carey hip hop. i need some slow stuff and also fast.. thanks in advance for everyone's help....!!!!! you can e-mail me at JESS110@aol.com

also....i forgot..if anyone has a manual that would greatly be appreciated..or even a copy of one!!!!

Hey,,,I have a 730...And have some very good MIDI files...Do you have your 500 connected to a computer or are you just playing live while singing?