You have two issues:
1. The driver causing your system crashes is Siwinacc.sys which is a Windows Accelerator Driver; a driver file from company Silicon Image, Inc. belonging to product SATALink Accelerator Driver.
The is a SATA harddrive controller driver and autoruns at boot-up.
2. You are running XP still with Service Pack 2 and we strongly urge you to upgrade to Service Pack for a) security reasons and b) Microsoft no longer supports XP AP2.