Ensure that you have the most up-to-date release as shown in the 'Downloads' page. Any improvements or problems resolved after the first release of the program on January 31 is addressed via a single, cumulative update since the first release.
(Some tips on the T1 may apply to other products as well).
Forum (The Forum contains questions and answers from other VisualTax Users)
If you have problems installing (unzipping) the downloaded files via a double click then click here for more installation instructions.