Welp, glad you figured it out...one piece of advice, you should not manually edit the links.db file, you should do one of the following:

1) Use the upgrade.pl script (codes are available in old posts in this forum)

-OR-

2) Download the links.db file to your computer and use Excel to add new columns, export the worksheet as a tab delimited (or whatever you chose for your delimiter) text file, re-name and links.db and upload the new links.db file to your web server.