By editing your node-yourcontentype.tpl.php file to call up each field individually, you can do this for your teaser view.
Hm, I can't find myContentType.tpl.php file in my directory. Is this something I need to create from a scratch to hack the hooks? I did take a look at Contemplate but, besides module specific APIs aren't listed at the API site (or I should say the basic API concept is still beyond me), I couldn't figure out how to make image hyperlink-able. Googling also returns nothing so far.
I found this:
http://www.lullabot.com/articles/image_and_image_exact_sizes_vs_imagefield_a...
It's great.
Fred
PS: Thank you VERY MUCH to Laura and David for writing. I am working on implementing this.