"Tony" <tony(at)vectorsalad(dot)com> writes:
> Defined a function with OUT paramter. Attempts to call it fail as the
> function can not be found.
Apparently, you don't understand how OUT parameters work either :-(
Perhaps the examples here will help:
http://www.postgresql.org/docs/8.1/static/xfunc-sql.html#XFUNC-OUTPUT-PARAMETERS
regards, tom lane