The Extensis Suitcase autoactivation plugin is involved with the crash. Start by disabling it.
You mentioned origianlly that it was crashing also on recovery, which means there's a good chance the recovery data is also corrupt. Try emptying or renaming your InDesign Recovery folder so that is no longer a factor and try again.
That crash report is not very insightful (something to do with a "Generic Page Item"), but I do notice this time:
Version: 220.127.116.112 (6000)
The current maintenance releae of CS4 is 6.0.6; At a minimum, you should update to 6.0.5. There is some possibility of images needing to be resized in 6.0.6 because of a change in bounding box calculations, so while 6.0.6 is the right place to be, please be careful and make sure you don't make a ton of work for yourself by updating to it.
But certainly you should update to 6.0.5.
Also, what Peter said.
In the event that you exhaust all options trying to open your file, I will suggest a file recovery service from marksware. I recently had a corrupt/damaged file that they were able to repair for me.