Is there somewhere I can download the LDraw image library?

[Philippe Hurbain]

This is one of the big problem with SR3d is indeed the generation of part images. I was never able to use built in mechanism (crash), always wondered how Sergio made the thumbnails.

When used Sr3d I generated images for special parts with inventory function of MPDcenter, after creation of a model containing all parts missing a thumbnail.

So what you are saying is that it is possible to generate images with MPDcenter when creating a models part list?

Yes, exactly. Not home now so I can't give you a detailed walkthrough...
Note also that Sr3d needs to sizes of thumbnails. Of course you can create them twice in different sizes, but I got a better visual result by creating bigger images and resizing then to the right sizes with batch Photoshop action.