In the KB_Article table (in the Altiris_Incident DB), the library/path information for each published article is listed under columns:

article_fqfn
article_directory
article_source

In our test environment, I was able to move the files manually (\\server_name\d$\Altiris\Knowledge Base\Libraries) and then modify the information listed above.

When I searched, it sucessfully displayed the articles with the new library.

**Again, use caution...modifying the database is not supported by Altiris...and I tested this in a safe NON-production environment...and I highly recommend you do the same.