Just in case anyone was having language trouble, I am using this version of Duokan:
Duokan_0_5_13_7800__2010_12_31_english (from the link on flip's site) - but it loaded in Chinese.
I managed to find the language symbol using google. The option to switch to english is point 'I' on page 2/3 in the settings menu. There is a link to a photo below:
http://i134.photobucket.com/albums/q...n_Language.jpg