I'm honestly not too sure.
I thought students enrolled in a CEH class would receive the iLabs-specific manuals when using iLabs in their course.
I believe EC-Council was supposed to offer iLabs access to anyone for a subscription price (which I would assume would provide you with those lab manuals) but it doesn't appear to be active...http://www.eccouncil.org/ilabs.aspx
I would just give them a quick call at their main office and ask.
Tel: +1.505.341.3228 (US)http://www.eccouncil.org/contact_us.aspx
(bottom of the page)