Am I infected? Please reply asap!

I used NIS 2009 and my scans come up clean.  However, when I scan my comp with Malwarebytes I get the following log file:

Malwarebytes' Anti-Malware 1.40
Database version: 2685
Windows 5.1.2600 Service Pack 3

8/24/2009 12:48:06 AM
mbam-log-2009-08-24 (00-48-06).txt

Scan type: Quick Scan
Objects scanned: 98562
Time elapsed: 5 minute(s), 40 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 2
Folders Infected: 0
Files Infected: 0

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\AntiVirusDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center\FirewallDisableNotify (Disabled.SecurityCenter) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
(No malicious items detected)