Safari 5.0 update has caused many applications/options to bring errors

Question

Hi Guys,
I made the Safari 5.0 update yesterday on my Macbook Pro, but midway through the update, an error message appeared (I didn't catch the error code).
But when i restarted the laptop, i was unable to access Safari, Software Update, iTunes, etc etc.
Here is the crash report when trying to open Safari:-
Process: Safari [5604]
Path: /Applications/Safari.app/Contents/MacOS/Safari
Identifier: com.apple.Safari
Version: 5.0 (6533.16)
Build Info: WebBrowser-75331600~1
Code Type: X86-64 (Native)
Parent Process: launchd [2606]
Date/Time: 2010-06-13 22:14:02.013 +0100
OS Version: Mac OS X 10.6.3 (10D573)
Report Version: 6
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0
Dyld Error Message:
Symbol not found: __ZN3JSC7UString3Rep14nullBaseStringE
Referenced from: /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
Expected in: /System/Library/Frameworks/JavaScriptCore.framework/Versions/A/JavaScriptCore
in /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
ITUNES-
Process: iTunes [5636]
Path: /Applications/iTunes.app/Contents/MacOS/iTunes
Identifier: com.apple.iTunes
Version: 9.1.1 (9.1.1)
Build Info: iTunes-9111201~2
Code Type: X86 (Native)
Parent Process: launchd [2606]
Date/Time: 2010-06-13 22:20:11.797 +0100
OS Version: Mac OS X 10.6.3 (10D573)
Report Version: 6
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0
Dyld Error Message:
Symbol not found: __ZN7WebCore6Widget8setFocusEv
Referenced from: /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
Expected in: /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.frame work/Versions/A/WebCore
in /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
SOFTWARE UPDATER:
Process: Software Update [5648]
Path: /System/Library/CoreServices/Software Update.app/Contents/MacOS/Software Update
Identifier: com.apple.SoftwareUpdate
Version: 4.0.3 (258.1)
Build Info: SoftwareUpdate-2580100~13
Code Type: X86-64 (Native)
Parent Process: launchd [2606]
Date/Time: 2010-06-13 22:20:39.461 +0100
OS Version: Mac OS X 10.6.3 (10D573)
Report Version: 6
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0
Dyld Error Message:
Symbol not found: __ZN3JSC7UString3Rep14nullBaseStringE
Referenced from: /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
Expected in: /System/Library/Frameworks/JavaScriptCore.framework/Versions/A/JavaScriptCore
in /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
ENTOURAGE-
Process: Microsoft Entourage [5658]
Path: /Applications/Microsoft Office 2008/Microsoft Entourage.app/Contents/MacOS/Microsoft Entourage
Identifier: com.microsoft.Entourage
Version: 12.2.4 (12.2.4)
Build Info: Unknown-100205~0
Code Type: X86 (Native)
Parent Process: launchd [2606]
Date/Time: 2010-06-13 22:21:10.372 +0100
OS Version: Mac OS X 10.6.3 (10D573)
Report Version: 6
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread: 0
Dyld Error Message:
Symbol not found: __ZN7WebCore6Widget8setFocusEv
Referenced from: /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
Expected in: /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.frame work/Versions/A/WebCore
in /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
I really hope you can help, I'm totally unable to do any work or access many applications.
Thanks in advance,

Answer 1

VB --
Like baltwo said, there's something wrong with the installation.
And because Safari hasn't been able to install properly, all your other internet dependent apps are failing, as well.
Are you on a reliable ISP? One that would not have a problem with a large install?
Do you have access to another Mac?
Did you migrate from a PPC to an Intel Mac?
This crash log is from June 13th.
Do you have a more recent one???