Since Ellis Lab no longer supports EE 1 and removed all documentation and “how to”, I tried to upgrade and now all I get is a white page.
I’ve posted at http://ellislab.com/forums/viewthread/230614/ and of course nobody responded.
I don’t have a backup of the install prior to the upgrade disaster. I just export to get my posts and comments into a new WP blog.
I have a COMMERCIAL license, although that doesn’t seem to make any difference any more. A $50 upgrade will get you a $299 license.
I can supply the EE database or you can try to fix the current install—whatever it takes to get to WordPress.