12hrs/Wu would be about right I guees for the old versions v2.xx ,this partly beacuse your 83MHz FSB is limiting you times somewhat ,also the Celermines have L2 cache which has been crippled compared to the PIII.
BTW ,dfi mobo? I'm afraid I don't know that 1😱 ,what does it stand for?
Let us know what WU times you get with v3.0 ,you'll need to do about 10 WU's to get a good idea of times.