Although it hasn't much to do with VirtueMart, I thought I should write about it, because eXtplorer is a valuable tool for so many of you (for me too, I created it, because I needed someting like it!). This software has now been released in version 2.0 (stable) after most of those annyoing bugs have been ironed out.
eXtplorer is a web-based file manager, that allows you to access and work with files directly on your web server. It installs on Joomla! 1.0.x, 1.5.x simply by using the component installer, but it can also be used as a standalone-app. A short word on joomlaXplorer: Although it's still available, I don't develop for it anymore (except for security fixes). eXtplorer is the replacement for joomlaXplorer.
Make sure to check it out: