I am sorry if no one responded to this earlier however here is what you were facing problems with. You had a SATA drive and it wasn't being recognized by the OS for which this is the workaround though it's for 98/ME but also works with Vista: Install SATA Problem on D865PERL
Other than that, in case you encounter any other problems, be sure to access the following URL and see the FAQs. D865PERL FAQs
For driver/software/BIOS and other support, here is D865PERL support page.
In case you encounter any further problems, make sure you let us know here or write to us in person so that we have your message right in our mailbox.
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