Click on the WLAN (wireless LAN) indicator (near the upper right hand corner).
Click on Open Network Preferences
Click on the + near the lower left hand corner of the Network window that appears
For interface, choose VPN
For VPN type, put PPTP
For service name, put **Company Name** VPN
For server address, put **FQDN of VPN server**
For account name, put your login name (i.e. john or jsmith depending on your company's policy)
For encryption, leave it at Automatic
Click Authentication and put in your password
And then it should connect.