Well, thanks to Mark for the heads up and WinOScentral plus their sidekick Yashiro for getting this together and sending it our way. If you miss the Zoom In - Zoom Out power toy under XP, well miss it no more. We have it and it's available for download right now.
This toy adds a right-click context option of "Zoom In/Out" to images in your browser window.
The Microsoft Web Accessory for IE 5.x can be installed under XP but it is has bugs. (aspect ratios on scaled images are incorrect and objects in frames sometimes can't be selected)
These bugs are corrected in this release. Enjoy.
Disclaimer
This software is provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software.
Download: XP Zoom Powertoy @ Neowin (link fixed!)
News source: WinOScentral