8.3.7 Windows Update Error

Using the following links to get to the PostgreSQL 8.3.7 (Windows)
one-click installer:

http://www.postgresql.org/download/windows
http://www.enterprisedb.com/products/pgdownload.do#windows

and then running the update utility, I get the following error message:

"[Error]
The existing data directory (Date/time setting: floating-point
numbers) is not compatible with this server (Date/time setting: 64-bit
integers)."


Q1)  Will a fresh install with dump and reload work?
Q2)  Is integer timestamps becoming the new default from the previous
floating point data type?

--
Regards,
Richard Broersma Jr.

Visit the Los Angeles PostgreSQL Users Group (LAPUG)
http://pugs.postgresql.org/lapug