The Product Connect plug-in for Sketchup is freely download-able from the Igloo Studios website: igloostudios.com/productconnect/app.
After filling out the registration form, you will receive an email confirmation. The email confirmation includes a link that will take you to a web page where you can choose to download either the MAC or Windows installer for the plug-in.
After downloading and running the appropriate installer, you’ll need to quit/close and re-launch any open instances of SketchUp.
The Product Connect toolbar (see Figure 1) should then be visible once SketchUp re-launches.
Figure 1. The Product Connect toolbar.
If for some reason the Product Connect toolbar does not show up automatically, you can turn it on by going to View > Toolbars > Product Connect.