Apply *ONLY* if you're an expert in ActionScript 3.0 programming. If you don't know AS 3.0 VERY good then DO NOT bid.
Other skills: Flex 3.0, AIR, PHP, MySQL, AMFPHP, XML, CSS, XHTML, CMS, E-COMMERCE solutions etc... if anything else write what else.
Skills with different frameworks for Flash technology, write with which you have most experience.
NOTE: Be as accurate as possible, if you don't answer with these details you won't be considered.