I'm only vaguely aware of this issue. But the problem revolved around the OEM agreement Dell had on the product. To may matters more fun, your warranty may be over and along with it the access to Dell fixing this one.
To help the forum find what the issue was and articles about it, please supply the EventID produced during the crash. Use the Event Viewer and use Start, Help and Support if you don't know what the Event Viewer is.
Be aware the the SB version of Office could require its own SP or SR and we get to find it.
Another issue is a recent trojan/malware broke copy/paste and could cause your issue. It's not indicative that this is your issue at the moment, but all pests should be expelled if you want this to work. Here's my usual note:
Parasite removal programs.
http://reviews.cnet.com/5208-6132-0.html?forumID=32&threadID=1313&start=0 notes the five scanning tools and removal tools that are fairly safe. If one does encounter an issue, its always been damage done by the MALWARE. The most common issue being Layered Service Provider replacement which you can use LSPFIX (Hint: use http://www.google.com to find).
The thread has follow on discussions about new links if you don't want to use Google to find an item.
Bob
PS. All the tools are free.
I have a 2 year old Dell Dimension PC - Pentium 4 - which came with Windows XP and Office XP Small Business. I have recurring problems especially when attempting to paste copied text from email to Word. Word freezes and I am forced to end the task and close the program. Reporting the crash always brings a message from Microsoft to download updates to Office XP. When I download Service Pack 2, the installation always fails. I'm inserting the proper disk -- it contains the file it's supposed to contain -- but no matter how often I've tried, the installation fails. I'm also unable to install any of the other updates until I install Service Pack 2. Dell refers me to Microsoft and Microsoft refers me to Dell. Any thoughts?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic