I downloaded the source code to give it a try. Although I will not use it in my personal site (coded by hand in XHTML, except for my WP powered Spanish-written blog), I wanted to try it mainly because it could be used in another site I have in mind. So, as I was saying, I downloaded the source code and started uploading the required files to the server via FTP (because my hosting provider doesn't provide SSH access). I installed gFTP, mainly because the files to be uploaded were a lot and were distributed in a lot of subsubsubdirectories (I think that the only reasonable use of a GUI is that, to manage multiple files at once). Well, gFTP logged in the server, started uploading files, and lasted ~2 hours uploading ~7 MB!!! Only to discover that they were not correctly uploaded.
Well, it ocurred to me to remove them all, which should not be a very dificult task. But, well, I discovered that the FTP server was just fscked. It kept disconnecting the gFTP sessions every couple of minutes, so I logged in via the 'ftp' command, and the same thing happened. So I spent ~2 hours deleting almost every single file and directory by hand! (I really think there should be a FTP equivalent of 'rm -r') Well, the conclusion: I've spent about four hours just trying to upload the files, without even being able to install Jaws at all. This has been very frustrating.
Update (20:54 GTM -0500): Finally, after letting my computer rest for a few hours, I could install Jaws. It is worth giving it a try, because is a very nice system with a lot of features, very nice graphics and really easy to use yet powerful and highly customisable. Unfurtonately, I don't really need it, I'm quite happy with my current website. But if you're planning to run a new one, you should try it.