The official website does not list any new version that works in Windows 7. Trying to run Life-Form in Windows 7 gives you an error regarding 32bit and 64bit compatibility.
You will need to use the application as it is on your current operating system because there is no support or will ever be for this product.
"As some of you may know, Life Form will not run on 64 bit operating systems. Currently we do not have the resources to upgrade the product." - Lifeform