Are you wishing to purchase a single license for Captivate 7 MichelleAdobe? If so then you may want to find a reseller still selling the previous version.
If you wish to purchase a volume license for Captivate 8 then you can request a backwards license to Captivate 7. Please be aware that this is a request and I would recommend verifying with our volume license team that a backwards license is available for Captivate 7. You can contact our support team at Contact Customer Care.