matt, firstly, i think molly looks absolutely adorable.
barkley is a working type and took a long time to develop any feathering on his legs and tail, but even at 9 weeks his ears were pretty wavy, as helen says. here's a pic...
i just thought you might find it interesting to see.
i do agree that if i were in your shoes, i would want to get things checked out, purely because if the breeder is misleading people i would feel bad not having tried to do something to prevent other people from being deceived. i also think that rachel's point about trying to establish exactly whether she is a cocker or has other breeds in her, if it is possible to, would be useful with regards to training- though i know that anyone who aquires a crossbreed of unknown origin copes very well regardless.
i'm sure you will have heaps of fun and we will all be very interested to see how she grows up, particularly as she is so gorgeous!