Hi,
1. Simply place the images directly to the pictures folder.
If you want to directly go to the detail page simply add &twg_show=x to the url you use for your link.
2. The text is in the language file - if you only have one level you can hide the whole breadcrumb.
3. What do you mean with this? you define the image size. If you image is bigger than your given size it is made smaller. And be aware that bigger te images the slower it is normally for your visitors. (I don't know the connection speed of your visitors)
4. No - I think you mean the thumbnail flash - of course only you have to register TWG once
.
- Michael