Annoying isn't it.
when you scroll down to the comments section of the product page there's typically a tab bar above it labeled "comments/reviews/videos/files". hit the files tab and it should pop up with a list. take care, because some are user provided files and they're not good about saying which files are and which aren't.
and items in different warehouses will have different files -- if you don't find what you're looking for, check the parallel listings for the other warehouses.
Alternative, a Google search including RC Groups will usually hit on one of the relevant RC groups threads, where the firmware modders are chatting about what they're putting into the latest firmware versions and what bugs have been found. getts a little deep in there at times, but otherwise a lot of good info, if you feel up to digging.