Webthumb for MODx

Does anyone have experience with this snippet? More precisely has anyone used this snippet to take a screenshot of the url supplied in the tv and then have it post that screen shot to a document? I can’t find much documentation on using it. Any input would be greatly appreciated.

Hi all, found this interesting WebThumb add-on plugin.
Any thought’s on whether it will work with the latest version ModX Evo?

Just tested the service and got back these 5 size screenshots:
http://webthumb.bluga.net/thumbnail/www.bestwebgallery.com/2010-11-30@09:57:35
Studying the output of the screenshot, and I just realized that since I limited the size to 640 by 480, it only grabbed that much pixel space of my window and did not take a full screenshot of the site. So it has some creative ability there, by selecting how much of the screen to grab for the thumbnails.

The service give 100 credits free per month, but if it charges 5 credits per site, one for each size, unless that could be limted to just 2 a thumb and a big version, you could only use it free for 20 sites otherwise.
The costs are not so bad to buy some credits, and for ease of use it’s a time saver.

Thougts on this one anybody, any gallery links of any inspiration type galleries ever launched using ModX, so far not finding many?