SET UP VPN CONNECTIONS ON ANDROID OS

1. Create a new VPN connection
Press the Home icon, press Menu , and tap Settings . Tap Wireless & networks and then tap VPN settings.

Tap Add VPN 

Select PPTP VPN.

Login to your control panel http://vpn.hidemyass.comand navigate to your PPTP page to find server details. Fill in VPN details such as VPN name, VPN server, etc. Remember your PPTP password is different and shown in your control panel.

2. Connecting to the VPN
Press the Home icon, press Menu, and tap Settings
Tap Wireless & networks
Tap VPN settings (figure 2 above)
The VPN connections you have added are now listed
Tap the VPN you wish to connect to
A dialog box will open asking for your credentials, enter them and touch connect
When connected to a VPN, you will see an ongoing notification in the Status bar on your HTC Desire. If you should get disconnected, you will receive a notification and anoption to go back to the VPN settings.
3. Connecting to the VPN
Simply open the notifications panel at the top of the screen on your HTC Desire and click on the VPN notification, then tap disconnect.