We did get your email regarding the tag issue and case-sensitivity, and it is in our October milestone scheduled for the 26th. It may be fixed before then, but it is at least scheduled. :) I should've shot off an email or message saying we got it, so I apologize about that. We are working on reorganizing to help the staff be more efficient overall, including myself.
Brian Reynolds said:
The second thing I discovered just now, which is that when I tried adding a two word tag surrounded by quotes, ie: "Vicki Fox", nothing was added to the resultant image tag data. Having multiple words tagged under a single clickable link would be a nice benefit for targeted searches of the server database so hopefully this can be implemented.
This will be a bit more... challenging. :) Currently we use a search plugin called, amusingly enough, Ferret. It runs on a different method than being solely tag-based, and the guts of it are headache-inducing to say the least. On a positive note, if you search for "Vicki Fox" (with the quotes) results still show up, including three of your pictures. It also looks at the title and description, although its ranking method is currently not working right. (Tags should have the highest priority.)
Anyway, multiple word tags could also be a relatively simple fix, so I might be able to patch it. I have been wanting to re-do the search to be more focused around images and suited to the site, so this could be a good impetus to get me going on that, too. Thanks for bringing these up!