Ravi,
There isn't a ton of OTM documentation out there, but it is slowly growing. If you check out this post (
http://www.otmfaq.com/forums/f63/br100-bfa-66/#post122), I've included links to the base OTM documentation that is available from Oracle. I believe Oracle now has included their "Show Me" visual help scripts in the documentation page, available via the "Demo" link.
I hope this helps!
Thanks!
--Chris