martymcsy,
I've done a little research to establish some actual facts for you. The situation is a slightly complicated due to the impending change in regulations.
Tha CAA's interpretation of the current rules is
LASORS 2010. The table on p45 says that their acceptance of your Canadian training is at the discretion of the CAA; a couple of paragraphs on p131 describe what you would need to do for your ICAO (non JAR) training to count towards a UK-issued JAR PPL.
The upcoming EASA regulations will allow ICAO training started
prior to April 2012 to be credited towards the issue of a licence. Article 8 on p6 of
this document refers.