Windows Vista 64-bit - ITunes died and won't reinstall

Question

Last night my wife let her laptop battery run dry with itunes 10 open. We had just installed it a week or so ago, and had not updated from the online download version.
Anyhow, afterward, when I tried to open iTunes, MS would pop up with a message that the program failed to open properly. The laptop is Windows Vista 64-bit with the 64-bit software.
I uninstalled, restarted, reinstalled, restarted, and tried again. Seemed to install correctly, but still got the crash when attempting to open.
Tried QuickTime, it also will no longer open. Uninstalled both, and no when I try to install iTunes, it goes through the gathering information process of the install, but then pops up with a window saying the installer encountered errors before iTunes could be configured.
I downloaded Windows Install Utility v. 3, but it shows iTunes and QuickTime completely removed (at least no entries were in their to remove).
I also redownloaded the iTunes .exe, with the same results. Even tried the 32-bit, heh, which obviously didn't work, but worth a shot I suppose.
Any help at all would be greatly appreciated.
I did a backup of the registry and went through and hard delete most of the iTunes entries, with no success, so I just restored the registry to the original since I wasnt 100% sure that I should be doing that.

Answer 1

Below are the two most recent problem reports for each of the three programs. No other programs had any recent problem reports. One interesting thing, from the time stamps, there are no crash reports from the last few iTunes install attempts which were giving the message from above and the latest attempt where it just flickers then doesn't do anything else.
IE:
Problem Event Name: APPCRASH
Application Name: iexplore.exe
Application Version: 8.0.6001.18999
Application Timestamp: 4ccf9787
Fault Module Name: mshtml.dll
Fault Module Version: 8.0.6001.18999
Fault Module Timestamp: 4ccfaef1
Exception Code: c0000005
Exception Offset: 00000000003d4d5f
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033
Additional Information 1: 7fa8
Additional Information 2: ad011ba5f87a70fa4fcf99fe53ccc471
Additional Information 3: 184a
Additional Information 4: 5b6bac566010931808e4f5f3b58e54e6
Files that help describe the problem (some files may no longer be available)
Version.txt
AppCompat.txt
minidump.mdmp
Problem signature
Problem Event Name: APPCRASH
Application Name: iexplore.exe
Application Version: 8.0.6001.18999
Application Timestamp: 4ccf9787
Fault Module Name: mshtml.dll
Fault Module Version: 8.0.6001.18999
Fault Module Timestamp: 4ccfaef1
Exception Code: c0000005
Exception Offset: 00000000003d4d5f
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033
Additional Information 1: 7fa8
Additional Information 2: ad011ba5f87a70fa4fcf99fe53ccc471
Additional Information 3: 184a
Additional Information 4: 5b6bac566010931808e4f5f3b58e54e6
iTunes:
Problem signature
Problem Event Name: APPCRASH
Application Name: iTunes.exe
Application Version: 10.1.0.56
Application Timestamp: 4ce4a7b6
Fault Module Name: QuickTimeCapture.qtx
Fault Module Version: 7.68.75.0
Fault Module Timestamp: 4c87d2a0
Exception Code: c0000005
Exception Offset: 0003c759
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033
Additional Information 1: fd00
Additional Information 2: ea6f5fe8924aaa756324d57f87834160
Additional Information 3: fd00
Additional Information 4: ea6f5fe8924aaa756324d57f87834160
Problem signature
Problem Event Name: APPCRASH
Application Name: iTunes.exe
Application Version: 10.1.0.56
Application Timestamp: 4ce4a7b6
Fault Module Name: QuickTimeCapture.qtx
Fault Module Version: 7.68.75.0
Fault Module Timestamp: 4c87d2a0
Exception Code: c0000005
Exception Offset: 0003c759
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033
Additional Information 1: fd00
Additional Information 2: ea6f5fe8924aaa756324d57f87834160
Additional Information 3: fd00
Additional Information 4: ea6f5fe8924aaa756324d57f87834160
Problem signature
Problem Event Name: BEX
Application Name: QuickTimePlayer.exe
Application Version: 7.68.75.0
Application Timestamp: 4c87ca48
Fault Module Name: QuickTimePlayer.dll
Fault Module Version: 7.68.75.0
Fault Module Timestamp: 4c87ca3f
Exception Offset: 00005b6d
Exception Code: c0000409
Exception Data: 00000000
OS Version: 6.0.6002.2.2.0.768.3
Locale ID: 1033
Additional Information 1: ce18
Additional Information 2: 51a1821df37b716a5bcc7d3a608fd9cc
Additional Information 3: a5e1
Additional Information 4: c197509b4c5823cbbe47ce2e6aea41fd
Extra information about the problem
Bucket ID: 1370383568