Hi Martin
I agree there is a difference, mainly due to TGD version - I understood you speak about first picture, but it is the 3rd one. This one have been rendered with a previous TGD version (in February 2007) so I agree there are some big differences.
I will work on it to try to reproduce same surface rendered as in 2007 then I will send you the update (and to the few others people who have purchased the pack)
Until that, I have updated my site with the picture you sent me.
Both others scenes have been rendered with latest alpha so normally you should have same results!
Thanks and sorry for it ... I hope at least you can tell that there is a support on this pack
Luc