After an update (several months ago), it doesn't work anymore on my Mac OS X 10.5.8

What steps will reproduce the problem?
1. When I launch the program. It doesn't open (the error log is below)

The problem started after an update I made several months ago. Then I tried to 
restore previous version on Sigil, but it didn't work anymore even the older 
versions. Now eveery update you publish I try to install it , but never works! 

What is the expected output? What do you see instead?

Sigil doesn't start.

What version of the product are you using? On what operating system?

Last version (5.0). But I've tried every version.

On a Mac OS X 10.5.8

Please provide any additional information below. If your source file
(SGF/EPUB/HTML/etc) is required to fully understand the problem, please
attach it to this issue. Read the ReportingIssues wiki page before
submitting!

This is the error log:

Process:         Sigil [1621]
Path:            /Applications/Sigil.app/Contents/MacOS/Sigil
Identifier:      com.valloric.Sigil.app
Version:         ??? (???)
Code Type:       X86-64 (Native)
Parent Process:  launchd [72]

Interval Since Last Report:          83324 sec
Crashes Since Last Report:           1
Per-App Interval Since Last Report:  0 sec
Per-App Crashes Since Last Report:   1

Date/Time:       2012-02-05 13:43:16.948 +0100
OS Version:      Mac OS X 10.5.8 (9L31a)
Report Version:  6
Anonymous UUID:  A30995E5-ACC8-4467-BFD1-A55159216ED0

Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Crashed Thread:  0

Dyld Error Message:
  unknown required load command 0x80000022

Original issue reported on code.google.com by gattasor...@gmail.com on 5 Feb 2012 at 12:51

Rainie3535 / sigil

After an update (several months ago), it doesn't work anymore on my Mac OS X 10.5.8 #1227