Try tracking stuff in
www.fitday.com as long as it averages out ok, then you'll be fine! But yikes! 50% protein is a lot! I never manage that! You might want to try some protein powder, Holland and Barrat has a big 1kg tub for £9.99 instead of the usual £21.99. It's quite nice
Oh and you'll want to start eating lots of chicken and cottage cheese. Lean pork and bacon medallions or lean and low bacon are very good sources of protein too with hardly any carbs in.
I wouldn't get too hung up on getting your ratios exactly right either, just aim for what you can within your likes/dislikes.
I've just ordered that book from Amazon, it came yesterday and I have yet to flick open the pages - too busy exercising!

I guess that's a good thing!
Oh yeah and try to cut down your startchy carbs, like bread and pasta and white potatoes, try getting your carbs from veg and fruit and oats and grains and brown rice.