Hiya,
are you saying you had a look at
www.peeonastick.com? If you didnt, have a look under opk faq's and there you can see cbfm sticks as compred with a normal opk's and also shows you high and peak sticks..
Otherwise get back to me and explain what your stick looks like and i'll try to help

Ive used mine for 14 months now so ive seen it all - or so it feels like, lol!!
Good luck, hun!