I've just started rigging my Beagle, and I have found Occre's instructions from Bowsprit installation (in which there were no instructions) to end of rigging to be pretty much useless to the point I probably won't buy another Occre kit. Even the guy making the model for their official videos is doing things differently from the parts I can make out in the instructions, and John Aliprantis who has a youtube Beagle series is doing things in another way.
For the bowsprit, I found the general location the Bowsprit hole should be located and started to dig around with my hobby knife until I found the slot that is intended for the bowsprit, I then made a small hole and slowly opened it up with a round file and sandpaper until it fit the dowel pretty snuggly.
Here is a pic of my bowsprit inserted so you can get a general idea of where it needs to be installed.
brunnels's post in Need help with HMS Beagle bowsprit was marked as the answer