Unfortunately, this software has been discontinued and there is no way to download the version that you mentioned. If you still have the program installed on your computer, and you can't start it because of the missing DLL there is a thing that you can try in order to fix this. You can go to Start and depending on the OS that you are using, open the Command Prompt using Administrator rights. In the cmd type :
regsvr32 /u u32Cvt.dll and hit Enter. This will un-register the DLL file. To register it again, you need to type
regsvr32 /i u32Cvt.dll and hit Enter. Close the console and restart the program. This might help.
I also suggest you visit the following developer website of software mentioned above to find out more about the programs that replaced your old one.