Click on the Apple in the top left of your screen and select "System Preferences..." In the section Internet and Network, select "Network". Below the left hand section where your Connection types live there is a small plus sign, click on it. For Interface select "VPN", VPN Type select "PPTP" for Service Name choose a name for your connection something like "Server Intellect Private Network" will work and select Create. Now on the left hand side, you will have a new connection with the name that you just chose, go ahead and select it so that we can start to configure it. Enter "pptp.serverintellect.com" for the Server Address. Enter your for Account Name. Check the box to Show VPN status in menu bar for easy access later and now click Apply.
Okay you're all set! Look up to the top right in your menu bar and you should see the VPN Menubar item. Click on it and then click "Connect "