My iphone 4 does not appear on itune and each time plung it in my pc, there's a sharp rejecting sound

Question

Microsoft Windows XP Professional Service Pack 2 (Build 2600)
Hewlett-Packard HP G60 Notebook PC
iTunes 10.6.0.40
QuickTime 7.7.1
FairPlay 1.14.34
Apple Application Support 2.1.7
iPod Updater Library 10.0d2
CD Driver 2.2.0.1
CD Driver DLL 2.1.1.1
Apple Mobile Device 5.1.1.4
Apple Mobile Device Driver 1.59.0.0
Bonjour 3.0.0.10 (333.10)
Gracenote SDK 1.9.5.502
Gracenote MusicID 1.9.5.115
Gracenote Submit 1.9.5.143
Gracenote DSP 1.9.5.45
iTunes Serial Number 002DABDC0AC8DD88
Current user is an administrator.
The current local date and time is 2012-03-24 06:52:31.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is supported.
Core Media is supported.
Video Display Information
NVIDIA, NVIDIA GeForce 8200M G
**** External Plug-ins Information ****
No external plug-ins installed.
**** Network Connectivity Tests ****
Network Adapter Information
Adapter Name:    {BD961DA2-52B8-4B56-926D-719ABD50FE47}
Description:    NVIDIA nForce Networking Controller
IP Address:    0.0.0.0
Subnet Mask:    0.0.0.0
Default Gateway:    0.0.0.0
DHCP Enabled:    Yes
DHCP Server:   
Lease Obtained:    Thu Jan 01 00:00:00 1970
Lease Expires:    Thu Jan 01 00:00:00 1970
DNS Servers:   
Adapter Name:    {4A74DC6C-2B95-467C-B5E2-4CC09AFA1DAB}
Description:    Microsoft Virtual WiFi Miniport Adapter
IP Address:    0.0.0.0
Subnet Mask:    0.0.0.0
Default Gateway:    0.0.0.0
DHCP Enabled:    Yes
DHCP Server:   
Lease Obtained:    Thu Jan 01 00:00:00 1970
Lease Expires:    Thu Jan 01 00:00:00 1970
DNS Servers:   
Adapter Name:    {A0D07C03-6D09-4898-B788-926086910E2C}
Description:    Atheros AR5007 802.11b/g WiFi Adapter
IP Address:    172.20.10.2
Subnet Mask:    255.255.255.240
Default Gateway:    172.20.10.1
DHCP Enabled:    Yes
DHCP Server:    172.20.10.1
Lease Obtained:    Sat Mar 24 04:48:41 2012
Lease Expires:    Sun Mar 25 05:34:17 2012
DNS Servers:    149.254.230.7
        149.254.199.126
Active Connection:    LAN Connection
Connected:    Yes
Online:        Yes
Using Modem:    No
Using LAN:    Yes
Using Proxy:    No
Firewall Information
Windows Firewall is on.
iTunes is NOT enabled in Windows Firewall.
Connection attempt to Apple web site was successful.
Connection attempt to browsing iTunes Store was successful.
Connection attempt to purchasing from iTunes Store was successful.
Connection attempt to iPhone activation server was successful.
Connection attempt to firmware update server was successful.
Connection attempt to Gracenote server was successful.
Last successful iTunes Store access was 2012-03-24 06:09:44.
**** CD/DVD Drive Tests ****
No drivers in LowerFilters.
UpperFilters: GEARAspiWDM (2.2.0.1),
E: Slimtype DVD A  DS8A2L-A, Rev 7H63
Data or MP3 CD in drive.
Found 1 songs on CD, playing time 255:57 on CDROM media.
Track 1, start time 00:02:00
Get drive speed succeeded.
The drive CDR speeds are:   4.
The drive CDRW speeds are:   4.
**** Device Connectivity Tests ****
iPodService 10.6.0.40 is currently running.
iTunesHelper is currently not running.
Apple Mobile Device service 3.3.0.0 is currently running.
Universal Serial Bus Controllers:
Standard OpenHCD USB Host Controller.  Device is working properly.
Standard Enhanced PCI to USB Host Controller.  Device is working properly.
Standard OpenHCD USB Host Controller.  Device is working properly.
Standard Enhanced PCI to USB Host Controller.  Device is working properly.
No FireWire (IEEE 1394) Host Controller found.
Most Recent Devices Not Currently Connected:
iPhone 4 (GSM) running firmware version 5.0.1
Serial Number:    79034VJGA4S
**** Device Sync Tests ****
No iPod, iPhone or iPad found.

Answer 1

Did you already try the general troubleshooting mentioned in this article? iPhone, iPad, iPod touch: Device not recognized in iTunes for Mac OS X