how do i get my old version of easy worship on this computer

 You download it, install it, then activate/register it. You can use the Transfer tool to transfer you old profile from your old computer to the new one.

Download

https://support.easyworship.com/support/solutions/articles/24000041409

Install

https://support.easyworship.com/support/solutions/articles/24000020386-downloading-and-installing-easyworship

Register

https://support.easyworship.com/support/solutions/articles/6000027775-how-to-register-easyworship

Transfer

https://support.easyworship.com/support/solutions/articles/24000043114-transfer-easyworship-profile