It would help enormously if 'This application requires a Java Runtime Environment [append version]' was moved to a separate entry. Then, let developer add a second line or lines below to help user. At present, clicking OK or Close both launch the browser (unexpected), and adding a second line to explain what will happen moves version to its end, which looks odd (see attachement).
For example, make following possible:
Heading: JAVA RUNTIME ENVIRONMENT (JRE) ERROR.
First line: This application requires a Java Runtime Environment greater than 1.4.0_1
More lines: Please click 'Get Java' to visit Java.com, then download and install latest free Java.
Change OK button to 'Get Java', and Close (X) to actually close and exit dialog box (expected behaviour).
It will also help enormously if the text fields were receptive to copy-pasting, and when saving or replacing existing wrapper to ask if you want to replace.
Thanks.