Yes, I am also VERY interested to find a solution.
It is also important for Google as Google often uses the description to present the page if it is has problem finding anything better. I have set up my forum and Photopost recently and 95% of the pages has the standard vBulletin description in the Google SERP. I can of course change that to something else, BUT, still it would be the same description on all SERPS = it wouldn't sell the content of that particular page for the user of Google.
So it is an important feature to make PhotoPost
SEO friendly.