JetForm was the name of the company and had many products. Are you using the Central server product to print forms on a printer? If so then the replacement would be LiveCycle OutPut. The most current release of the Central server just came out and is 5.8
Thank you as far as the central server i have no idea they installed this years before i was hired and i have never worked with Jet Forms the user creates the form and then saves the IFD file and then printes the form on the groups network printer using the windows printer default.