I turned off my macbook while it was updating software and now it's gone weird

[ein]

I'm using Mac OS X ver.10.5.8.

I turned off my macbook by accident while it was running software update.
When I turned it on again, it seemed fine but none of the applications I try to turn on works, saying "The application xxx quit unexpectedly."
I restarted it but nothing changes. Only finder works now, fortunately, so I've backed up the important files.

I've looked up for troubleshooting with no luck.
Should I give up the contents in my hardware and reinstall Mac OS X?

If that's the case, another question is that if I can use Mac OS X install DVD for MacBook Pro on a MacBook, because that's the only install DVD I have for now. (the version is the same. 10.5.8)

Please let me know what would be the best option.
Thank you in advance.

 

[vansmith]

You can't use install discs from another model. So, you won't be able to use the MBP disc with the MB.

If you remember what update was being downloaded, try going to another computer, downloading it there, transferring it over and installing it manually. If you don't, and you can get System Preferences open, go to System Preferences > Software Update > Installed Software to see if the incomplete install is listed.

 

[ein]

Thank you for your quick response.
I don't remember which update was in process and there wasn't any incomplete install listed on the installed software list, so I decided to update as many softwares I can figure as possible manually.

Here is the list of updates I've done:
Airport Utility 5.5.3
Java for Mac OS X10 update 10
iTunes 10.4.1
Security Update 2011-004
Quicktime 7.7
iDVD 7.0.4
iLife Support 9.0.4
RAW Camera Update

and there was a problem:
When I tried to install Safari 5.0.6 leopard, which said the system requirements is Mac OS X 10.5.8, it stopped me saying "You cannot install Safari on this volume. This volume does not meet the requirements for this update."

Would this mean it was the update for Safari when the machine was turned off?

The problem with "the application quit unexpectedly" isn't solved at all.
Is there any other update I have to try or is there any way I can solve it with the Safari update?

Thank you.

 

[miclar1]

You could try installing the 10.5.8 combo update. I've often solved problems on my iMac by doing that.