Yes. Licenses to VSP support 2 administrator installations for the Lite Edition, and 4 administrator installations for the Standard Edition. If needed, more can be purchased by going to VSP's Client Login page and next to where it says "Maximum Computers:" click the "Expand" button.

You can now select how many computers you need with the "New maximum number of computers allowed" drop down. You can also add more volunteers or upgrade to the Standard edition from this screen. After selecting your options, click "Continue" and you will be given a price breakdown, and can choose "Continue" again to be brought to the payment screen.