Problem with timestamp

Hi,
We have our application which uses postgres 7.1.3 version in
that we use a time functions like now(),timestamp..... etc mostly
timestamp without timezone.We don't need the timezone in that variable
so we ignore it using timestamp without timezone. The same is not
working with higher versions.We are facing problems in migration. We are
able to store the dates in the database but while retrieving the driver
is not able to retrieve. We found a temporary change by replacing all
the time functions to localtimestamp() but we have to do code change for
that. Can we have any other solution where we don't have to change our
code and that should accept all types of time values without timezone?

Regards,
Magesh

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