Please be sure to unzip the contents of this compressed folder before attempting to open the evaluation copy of UI Builder.  
Otherwise you will get error messages because the database is read-only.  
Once you have unzipped the file, you will be able to evaluate UI Builder without error.

Thank you for your interest!

How to Unzip Files:
a) Right click the downloaded file.
b) Select "Extract All..." from the popup menu.
c) Follow the wizard to extract the zip file to your PC.
d) Open the new unzipped folder. Now you will be able to run the evaluation copy.