openclipart thumbnail preview

It seems that some contributions on openclipart don't have preview on the clipart page ; and that is unfortunate since visitor have to click the svg file to have a pick at the picture



the solution :
Uploading a .png file first is enough to generate the clipart's preview.
Then upload the svg file afterward.

http://op3ncl1part.blogspot.com/search?q=thumbnail

* Update *

Now for a more global preview on the openclipart website (that will impact the search page, user page etc ...) -- There's a another way - that involves a greasemonkey's script -- check this post for more details.