The first thing to notice is that you're not running the current version of CS3:
Version: 126.96.36.1998 (5000)
The latest update to CS3 is 5.0.4, which I believe has fixes for a bunch of similar problems: http://www.adobe.com/support/downloads/detail.jsp?ftpID=4029
. You should definitely install the update before we look too-too closely at the crashes.
Are you using Version Cue? The first crash report appears to be related to it.
The second one...I forgot how CS3 sometimes doesn't include symbol information in the crash report. It's a bit of a pain to figure it out, so I'll defer until we see if the update doesn't solve your problem. Though the Apple version of the crash report may have more information, if you get that or have access to it (it should be visible in Console.app in ~/Library/Logs/CrashReporter.
So I can run a copy of CS3 (not updated, installed as it was straight out of the box) fine on a second account but this one seems to crash on even the most minor of jobs.
I initally had some problems installing CS3 on my macbook pro (prior to this machine I'd had a mac pro running tiger without issue). I found the Adobe Updater would cause Illustrator to crash when opening after the updates had all been applied. I fixed this problem by doing a fresh install and updating each application manually by downloading the updates from the support site. Until now I had not had anymore issues.
I'm not quite sure I follow -- it sounds like you're aware there are updates, but you mention updating as it if is per-account. But it's not. When you update InDesign (or anything Adobe) on one account, the updates get applied across-the-board to the whole system.
What is different between user accounts is InDesign preferences, so if they have gotten corrupt, you can have problems. (There are other differences, too, of course...).
You should update InDesign to 5.0.4 and then trash your InDesign preferences (see the link in the Troubleshooting 101 box on the main forum page), and see if that helps.
Just wanted to say thank you for the answer, I'm not at home right now but I'm going to try upgrading when I do and see if that irons out the problems. If not I'll be back with more to report. Thank you very much for taking the time to help out.
As for Version Cue to be honest it's something I ignore. So no I don't use it.
Ah then this is interesting. The reason I thought the version on my second account wasn't updated was it begins to download updates when I open inDesign, I'm going to check which version now. That seems odd though, wouldn't it have picked up those updates on my first account by now?