Nextgen and medium size

Hi!

Does anyone know how to work with 3 different image size variations using NextGen? I’m trying to create the following structure:

image 1 – post thumb
image 1 – medium size
image 1 – full size

Here’s how it should look like: http://2010.jurisverbeelding.nl/foto/portret/siren-dreams

In this example I uploaded an extra image to wp’s media library which is a lot of extra work, especially foor hundreds of images.

Nextgen has a support for post thumbs but uses it’s own thumb settings for that. Those settings are allready used for the medium sized images.

I looked for extra post-thumb plugins that insert an extra feature for thumb controle but none worked properly.

Thanks