I emerged wordpress-1.5.2, then ran the webapp-config line as suggested. Fatal error: Please emerge wordpess-1.5.2 It did that because I spelled wordpress as wordpess. It took me a while to notice this typo. Shouldn't there be a better error message than that? Can webapp-config figure out that there is no package called wordpess? This would be better: "Fatal error: There is no such package wordpess-1.5.2"
I clarified the error message as given below. This will then be part of webapp-config-1.51. 'There is no web application called "wordpess-1.5.2" installed. Please emerge it before trying to install it with webapp-config.'
Fixed UPSTREAM.