When I click from thumb view to full image view then click on the image that goes to a page with only the image (no thme, etc), I get

http://mytravels.mydomain.com/index.php?album=1997boston&image=18a.jpg&p=*full-image

and no picture. Saw this in previous build but with all the other woes, ignored. I emptied the image cache after upgrading to last night's build. And databases (no particular reason).

First, it will help us all if we can agree on some terminology. So here are the traditional definitions used when discussing zenphoto images:

Thumbnail--the small image usually associated with a link to the ....
Image Page--the formatted page with a "normal" sized image displayed on it. These images are often about 595 pixels on their longest dimension. Clickin on the image on this page will normally take you to the ....
Full Image--A view of the image without any zenphoto page to contain it.

So, to figure out what is going wrong when displaying the full image, try first to set the image protection to unprotected. If this displays the image, then there is a processing problem when zenphoto tries to add its protection to the process. This is usually due to memory limits on your server.

Steps I took:
set the image protection to unprotected - done
uploaded your .htaccess (removed Dreamhost's ?????)

still no Full Image.

I'm thinking I need to change at my host's end (will try turning off, takes about 10 min).
I set image linking there which I mentioned in previous posts. But, have never seen what effect it has so maybe not viewing the image is "doing its job"????

Will check what memory limits I have with Dreamhost (no idea, they're so generous I assume tons).

Okay, got the terminology you use for the images. I always mean the index page thumbnails, just didn't know about term for the Image Page & Full Image, but was actually referring to them correctly, just not in understandable wording

UPDATE:
ZenPhoto image protection: OFF
Dreamhost .htaccess file linking: OFF
album database cleared, cache cleared (browser), logout/in

Clicked on Image Page image to go to Full Image. Still see URL (as above) only, no image. (sometimes I see the full URL that continues and says it cannot be displayed because it contains errors.)