Same here, 250 GB IDE hdd only recognized as 128 GB (SATA hdd does not work at all, impossible to partition). Something to do with 48 bit addressing or something?

In Windows XP, there was the same problem.
* 48-bit LBA support is necessary for drives larger than 137GB (128GB binary). The following conditions are necessary for the correct functioning of 48-bit LBA support in Windows 2000/XP:
* Windows XP Service Pack 1 (SP1) must be installed for Windows XP versions prior to August 2002. For information about SP1, see Microsoft Article 322389.
* The system must have a 48-bit LBA-compatible Basic Input/Output System (BIOS) installed. This includes EIDE controller card BIOSs.
* You must enable the support in the Windows registry


Besides, it does not boot even after applying Puttabong's instructions.

(.... Maybe I have to wait for Rev2...)