Good luck Beth, its a bonny wee rug!! I've done a couple of latch hook rugs and they've been pretty fun
I'm not sure if your kit contains anything to finish the back of the rug, so here are a few things that I wish I'd known about when I was finishing mine!!
Rug finishing items from Sew and So:
http://sewandso.co.uk/ran1079-0.html - The self-adhesive tape would have been a godsend if I'd known about it! And the foam backing would be fab if you're expecting the rug to be used a lot...
Lakeland do a non-slip coating so that your rug won't slide around on any surface but can still be repositioned...