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The analysis of your HJT log shows nothing worth worrying about. No firewall was noted but I will guess that you are using the Windows XP firewall. Two entries were questionable but they checked out as ok.
O4 - HKUS\S-1-5-21-1008073735-1017810871-1854032067-1009\..\RunOnce: [AcerScrSav] (User '?')
O17 - HKLM\System\CCS\Services\Tcpip\..\{FDC2648C-AA72-4756-B2DA-E5CE6748E156}: NameServer = 202.123.2.35,202.123.2.11
Otherwise, a good clean HJT log.
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