Welcome to Army.ca
Many of the questions you have are already answered and can easily be found with some research and use of the SEARCH Function. As you missed these 'Must Read Topics' when you Registered, perhaps you will take the time to read them now:
Army.ca Conduct Guidelines: MUST READ -
http://forums.army.ca/forums/threads/24937.0.html
MSN and ICQ "short hand" -
http://forums.army.ca/forums/threads/33247.0.html
Regarding the use of "MSN speak" versus the employment of prose which is correct in grammar, spelling and punctuation, please see: http://forums.army.ca/forums/threads/34015/post-260446.html#msg260446
FRIENDLY ADVICE TO NEW MEMBERS - http://forums.army.ca/forums/threads/24937/post-259412.html#msg259412
Recruiting FAQ - http://forums.army.ca/forums/threads/21101.0.html
Infantry FAQ - http://forums.army.ca/forums/threads/21131.0.html
Canadian Forces Aptitude Test - http://army.ca/forums/threads/21101/post-103977.html#msg103977
Fitness requirements at enrolment, see page 12 of this brochure:
http://www.recruiting.forces.ca/media/pdf/physical_fitness_en.pdf
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Google search of Army.ca -
http://www.google.ca/search?hl=en&q=+site%3Aarmy.ca+%22search+term%22&btnG=Search&meta= (follow the link then replace "search term" with what you are looking for)
Army.ca wiki pages - http://army.ca/wiki/index.php/Main_Page
To summarize. Welcome to Army.ca, start reading.