Froyo or Android 2.2 upgrades have been notoriously troublesome across many operators, Vodafone being one of them.
The company took its time to push Froyo onto the HTC Desire, famously releasing a false update which many thought was Android 2.2, but just turned out to be a patch for 2.1 (which merely added 360 gunk).
However, the network has definitely got its finger out when it comes to Froyo for the HTC Wildfire. No sooner had HTC announced the availability of the upgrade, and Vodafone was pushing it straight out.
Vodafone revealed the news on its official forums, and several satisfied customers have posted to confirm that they have indeed downloaded Froyo onto their Wildfire.
You can check if Android 2.2 has rolled out to your Wildfire yet simply by selecting Menu from the home screen, then Settings, scroll down to About Phone and then tap System Software Updates. Finally, tap Check Now.