urgently required setup zen cart for selling MP3 albums

I need urgent basis a qualified specialist to create a Mp3 Download for Purchase page on my current website PrayerAudioCross.com. There will also be an associated Jacket image per download for the purchaser to download with their Mp3 purchase or purchases. Zen cart is the current e-commerce software for my site. This is not a complicated job and do not need unprofessional incompetent people applying.I know something can be done using media manager but i dont have [login to view URL] need to show me how you did that. Only the best will be chosen ref page like: http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=30+voices+of+prayer.