Note that it specifically mentions 4.x and higher.
Better checkout on an eval first.
The e-Tester Visual Scripts are, by default, designed to drive playback in the built-in browser pane, which is Microsoft Internet Explorer compatible.
e-Tester also provides the capability to generate Visual Scripts that drive playback in Netscape Navigator (version 4.0 or higher). You must specifically generate the Netscape compatible Visual Script from a recorded Visual Script.
To play back Netscape compatible Visual Scripts, Netscape Navigator 4.x (or higher) must be installed.