I've replied on the ticket but for the benefit of everyone here is the reply:
Thanks. The entities in retweets will function for all retweets from now on. If you query a timeline which has retweets in it  you should find the entities are included and with the correct offsets. 1. twurl "/1/statuses/user_timeline.xml? id=themattharris&count=5&include_entities=true&include_rts=true&trim_user=true"