Alberta Justice publishes a booklet about getting and enforcing a judgment in Alberta. The part about enforcing a judgment begins on page 29 in the following pdf:
http://www.albertacourts.ab.ca/pc/ci...in_alberta.pdf
You may at some point have to engage the services of a civil enforcement agency. Consolidated Civil Enforcement, for one example, has a list of services provided on their website and may be able to assist you:
http://www.ccebailiff.ca/our_services/
[Disclosure: I have no interest in CCE but have engaged their services in the past. Your results may vary.]