Hi Looking at the error message does the file that the error message is complaining about exist? You can try to run the repair feature of the content server software as this corrects many small issues that might be present.
You do this from the add/remove programs and then click change on the content server software. Initiate the repair from here. This will validate the configuration and seetings. After this try to run the wizard again, also try to figure out if the file the error is complaning about exsists.
/Magnus