what is this mean ?

http://i.imgur.com/QkoVq.png

is my computer infect ? >:(

aswMBR version 0.9.2 Copyright(c) 2011 avast! Software
Run date: 2011-02-14 14:04:47

17:04:47.171 OS Version: Windows 5.1.2600 Service Pack 2
17:04:47.171 Number of processors: 1 586 0x604
17:04:47.171 ComputerName: MODY UserName:
17:04:49.031 Initialize success
17:05:44.375 Disk 0 (boot) \Device\Harddisk0\DR0 → \Device\Ide\IdeDeviceP2T0L0-e
17:05:44.375 Disk 0 Vendor: WDC_WD800JD-55MUA1 10.01E01 Size: 76319MB BusType: 3
17:05:44.390 Disk 0 MBR read successfully
17:05:44.390 Disk 0 MBR scan
17:05:44.390 Disk 0 scanning sectors +156280320
17:05:44.437 Disk 0 trace - called modules:
17:05:44.437 ntkrnlpa.exe diskpt.sys CLASSPNP.SYS disk.sys ACPI.sys hal.dll atapi.sys pciide.sys PCIIDEX.SYS
17:05:44.453 1 nt!IofCallDriver → \Device\Harddisk0\DR0[0x82330040]
17:05:44.453 3 CLASSPNP.SYS[f84b505b] → nt!IofCallDriver → \Device\00000086[0x823423a8]
17:05:44.468 5 ACPI.sys[f834b620] → nt!IofCallDriver → \Device\Ide\IdeDeviceP2T0L0-e[0x823424d0]
17:05:44.468 \Driver\atapi[0x823438e0] → IRP_MJ_DEVICE_CONTROL → diskpt.sys[0xf82c7362]
17:05:44.484 \Driver\atapi[0x823438e0] → IRP_MJ_INTERNAL_DEVICE_CONTROL → diskpt.sys[0xf82c6e18]
17:05:44.500 Scan finished successfully

It just means it found ATAPI drivers, that is all.
Advanced Technology Attachment with Packet Interface
www.atapi.org

But why haven’t you SP3?
That is a thing you should worry about.

It’s “Shadow Defender Filter Driver” that hooks disk IO. Nothing suspicious.