Thanks. I'm aware that WSAD 5.1.1 supports both WTE 5.1 and WTE 5.0.
My question was regrading the WSAD 5.1.0.
Concerned people from IBM mailed me that the installation program will detect the changes automatically and install the WTE 5.1 on my WSAD 5.1.0.But that did not happen. so I was wondering if there is any other way to install WTE 5.1 on my WSAD