Converting this imacros macro to ui vision should be no problem. Plus Ui.vision is open-source which protects us Ui.Vision users, since we all have access to the source code (unlike imacros).
For the conversion: I guess you have seen this imacros alternative help page already?
If so, at which command(s) do you get stuck? Or, if you include the URL of the website (so that I can run the macro), I could also convert the macro for you.