when looking at subalbums, my gallery name appears as

http://www.flickr.com/photos/fdnyfish/7216760578/

and when I look at my archive view my navigation appears as

http://www.flickr.com/photos/fdnyfish/7216760670/

anyone else seeing this?

» is the html entity encoding of » Likewise the second image shows &``amp;raquo; which is basically a double encoded ».

Presumably your theme has passed these encoded strings to the Zenphoto breadcrumb and page nav functions. As explained in the 1.4.3 release notes, Zenphoto "print" functions should be passed un-encode strings as they will encode them as necessary to meet WEB validation requirements.

actually zpArdoise 1.4.2 deals with zenphoto 1.4.2.x but not with zenphoto 1.4.3 (witch is in beta)
but be sure that zpArdoise 1.4.3 will be adapted to zenphoto 1.4.3 context.

You should start updating your theme(s) now actually so it is ready when 1.4.3 comes out. We will probably on the weekend switch our own site to the 1.4.3 beta.

of course, I am working on it...

I knew of course you are..;-)

I'm using the zpskeleton theme and am seeing the » text. Is there a way to fix this with a simple line of code change?

Please don't mix topics as that is an entirely diferent theme by a different author. Try to use the latest theme or wait until an update is being release. The quick fix is already told above by modifying the theme.