HTC gifted Froyo for this holiday season to its Wildfire device owners. Froyo update to HTC Wildfire is considered as a rumor until the last minute before the update was announced. The update is now available in European countries and other parts of the world will receive later with slight delay. 

You can download the ROM update from HTC server through OTA using your WiFi or 3G internet service. It is not recommended to use low speed data connection because the update size is more than 50MB, may cause damage to the OS if the update fails. HTC have done lot of tuning in Froyo to work with low spec device like Wildfire. Lets see how the wildfire spreads.