As many other here, I recently bought an HTC Wildfire from Vodafone (http://www.hotukdeals.com/deals/htc-wildfire-vodafone-126-no-top-up/768877). I had it unlocked through Ebay to be able to use it with my "3" simcard which went like a breeze, but I've encountered some problems when I tried to access Skype, Windows Live Messenger and "My3". So, as I spent quite a lot of time talking with "3" tech service and then read many forums before finding a solution, I though I would share with you what I've found so you don't have the same headache.
So this will work for people on "3" with a non "3" HTC wildfire
From the home screen on your Wildfire: press Menu>Settings>Wireless & Network>Mobile networks>Access Point Names
Then press Menu>New APN
And fill like this:
Proxy: not set
Port: not set
Username: not set
Password: not set
Server: not set
MMS proxy: mms.three.co.uk
MMS port: 8799
MMS protocol: WAP 2.0
Authentication type: not set
APN type: not set
Then press back until you're back on the wireless & Networks screen, and unselect Wi-Fi (turn it off)
Go back to the home scree, open you web browser and in the address bar type: http//mobile.three.co.uk/hb/singleurl
You are then on the main "3" page, go at the bottom and click on the Skype link, then download Skype.
Come back and at the bottom again click on messenger then download it.
Come back again and at the top, click on "My3" and save the page in your bookmark as "My3"
You can close your browser. (you can add a shortcut to your home screen if you wish)
Now open and install Skype and WL messenger and enjoy.
There is a little problem though. It may sounds obvious but don't forget that Skype and Messenger from "3" only works when connected on the "3" Network. So if you have plenty of data with you contract, no problem, leave the Wi-Fi off and that's it.
But if, like me, you're on PayAsYouGo and get only 150mb every 3 month, you might want to switch the Wi-Fi back on, and if you do, every time you're in your Wi-Fi range, the Wildfire will automatically disconnect your "3" data connection to go through Wi-Fi and therefore it will kill your Skype and Messenger. Something to keep in mind. You'll need to switch off the Wi-Fi every time you want to use Messenger or Skype. (Somehow my old N95 was managing to keep Skype connected while using the wifi for browsing it's a shame this one doesn't)...
I hope this will help a few of you
P.S: According to the "3" website Messenger doesn't work on the wildfire, but it seems to work fine on mine
P.S: Does anybody know when Vodafone will upgrade their wildfire to Froyo (android 2.2)?