Cannot install Xmanager 2.0 on Vista [2]

I recently decided to use Xmanager on my machine since one of my friend recommended it. Well, unfortunately, I even cannot install the program on my machine (Vista Ultimate x32). Please find the attached. When it asks me about the serial number, the 'Next' button is deactivated, so I cannot proceed. Any suggestions?

I think you have to enter the company name.

That's a shame.
Now iti works. Millions of Thanks.