IPhone 4 does not show in iTunes on Windows

Question

Complicated one here for everyone, I got my sister a Windows XP Pro on a Dell laptop (here in refered to as Dell) for Christmas.  She wants to use Dell to sync her iPhone 4 running 4.2.8 but when she plugs it in it is only detected as an image device, but not in iTunes.  Here are some details about what has been done so far.
Computers in use and short names:
my computer: MacBook Pro X.7.3.11D36 Dev (Macbook)
iTunes 10.5.2 (MacTunes)
attached to my itunes account
running as admin
her computer: Windows XP Pro on Dell (Dell)
Started with iTunes 10.4.? updated to:
iTunes 10.5.1 (downloaded this evening)(DellTunes)
attached to sister's itunes account
running as admin
When given to sister, could not import itunes libary from old windows xp computer to this one, so libary is fresh, music from the old itunes music folder
family computer: iMac X.7.3.? (FamilyMac)
iTunes 10.5.? (familyTunes)
attached to sister's itunes account
running as limited w/parental controls
Device info and short names:
her cell: iPhone 4 Verizon running 4.2.8 (here in called 4)initiallized and formated from FamilyMac
my current cell: iPhone 4s Verizon running 5.0.1 (4s)initilized and formated on Macbook
my old cell: iPhone 3g ATT running 4.2.1 or 2 (3g)initilized and formated on Macbook
Who works where:
4,4s,3g all initialized and last synced on FamilyMac, Macbook, Macbook respectivly
4,4s,3g all detect as normal on MacTunes
4,4s do NOT detect as normal on DellTunesDoes appear as an image device on Dell.  software built into XP, much like image capture on Mac
3g DOES detect as and has been backed up to DellTunes
Following attempts have been tried and failed
plugged in 4 into Dell
disabled auto launch of image device software on Dell for 4
replugged in 4
plugged 4 into Macbook, showed up as normally expected
plugged 4s into Dell, does not show in DellTunes, does auto open image device software
downloaded and installed latest iTunes for Windows XP
plugged 4 and 4s into Dell, same results as before (steps 1,2,5)
ran itunes diagnostics, all settings reported fine except for detecting plugged in ipod/iphone
manually disabled and reabled ipod support service as stated in the help document linked to in 8
replugged 4 into Dell, same results as before
set msconfig to all off except for anything itunes related.  applyed to both services and startup programs
repeat steps 7-10
plugged 3g into Dell, shows in Delltunes as normally expected
backed up 3g to Delltunes to conferm data would transpher.  backup susessful.
removed 3g and replugged 4 into Dell, 4 gave same results as before (steps 1,2,5)
set msconfig to normal mode
replugged 3g into Dell, looked in device manager, shows under image devices and USB devices.  Under USB devices shows as Apple moble device
switched to 4, looked again in device manager, only shows under image devices
gave up for the night and posted this
*note many times steps would be repeated a few times under both sister's account and admin's account on Dell, as well as a few reboots.
The confusing part is that the 3g works fine but not 4 or 4s.  I would understand if itunes was older than that cellphone version but iTunes is as recent as possible.  Does anyone have any ideas as to what is wrong and what would fix it?

Answer 1

Follow ALL of the troubleshooting steps in the article from which the question was posted.