Opera software was the pioneer of navigation of web browser/web pages using mouse gestures. If you are still stuck with Internet Explorer and for some reason cannot upgrade to Opera or even Firefox (which has a plugin) specially if you in a corporate environment, there are two plugins/addons available for Internet Explorer dependng on what version you are using:

1) For Internet Explorer 6, you can use this free addon called Mouse gestures for Internet Explorer which can be dowloaded here. Most of the gestures are triggered by dragging the mouse with right button down. You can also associate a keyboard shortcut with a mouse gesture.

2) For Internet Explorer 7, there is an add-on called IE7Pro which can be installed on Windows XP and Vista which can be downloaded here