Well this is not original Firmware from HTC Hero. It’s a Beta version produce by LOX called KaguDroid 1.2.2.      
So far I found this firmware is stable compare with others out there but I hope HTC will come with the original 2.1 Firmware soon.      
      
OK.. Before you do anything make sure do a Nandroid Backup  
Step 1: This is the file you need to download before do the flash thingy:      
1.  KaguDroid 1.2.2      
2.  Gapps-hero-ERE36B-signed.zip      
      
Step 2: Wipe       
Step 3: Flash the ROM with Kagudroid_1.2.2.zip      
Step 4: Flash the google application (Gapps-hero-ERE36B-signed.zip)      
Step 5: Reboot
Credit to LOX for his hard work. For more details please visit this website <---- HTCPedia.com
 


2:45 PM
Good Info u have here.. :)
11:32 AM
Thanks Deen :-)