So you've been playing with custom programming of your HC-8+ and decide you want to put it back to the factory program. No problem. Go to the HC-8+ product page and you'll find the latest firmware in the Downloads section. Note that this is a pre-compiled file that you can download with any Propeller IDE.
HC-8+ Product Page (http://www.efx-tek.com/topics/hc-8.html)