Downgrading from Custom Sidebars Pro to Custom Sidebars

Good morning...
We purchased and installed Custom Sidebars Pro for a client and they don't need the extras that come with it and now we just want to use the regular Custom Sidebars plugin. We no longer need the monthly service and were wanting to know how to cancel the subscription and use the Custom Sidebars without losing the current side bars that are setup.

Thanks in advance!

Ken Brown
eWareness, Inc.