Sorry for taking so long to get back to this.
I tried re-installing, got the error. Looked in Control Panel/Add or Remove Programs and Java 7 update 7 is listed. Tried to remove it, got the exact same error in the application log for both: Removal success or error status: 1603.
I really don't have the time or the original installation discs to install XP from scratch. Hopefully there is an alternative.
If anyone knows of a website that can offer ColdFusion help that isn't controlled by neurotic, pedantic jerks* (stackoverflow.com), please PM me with a link.
* The neurotic, pedantic jerks are not the owners; just the people who are in control of the "popularity contest".