Microsoft has released the Runtime file for Access 2007 as a free download. This runtime allows users to run Access 2007 compatible databases without having purchased Access or Office Pro. Also free is the Developer Extensions that allow you to package an Access app with the Runtime in an installation package.

The downloads can be found here:
Download details: Access 2007 Download: Access Developer Extensions (http://www.microsoft.com/downloads/details.aspx?FamilyId=D96A8358-ECE4-4BEE-A844-F81856DCEB67&displaylang=en)

Download details: Access 2007 Download: Access Runtime (http://www.microsoft.com/downloads/details.aspx?FamilyId=D9AE78D9-9DC6-4B38-9FA6-2C745A175AED&displaylang=en)

Thanks Scott, much appreciated!