Here is the script to upgrade to MyLinks2. Just run it from your Links SQL cgi directory.
I've tested it briefly and it worked - the only problem you may encounter is moving the date from the MyLinks_Custom table to the MyLinks2_Custom table because the original MyLinks used a date but the new plugin uses a timestamp. It should insert an up to date timestamp though if the date can't be converted successfully.
Also I can let you all know that links in multiple categories are handled properly =)
I've tested it briefly and it worked - the only problem you may encounter is moving the date from the MyLinks_Custom table to the MyLinks2_Custom table because the original MyLinks used a date but the new plugin uses a timestamp. It should insert an up to date timestamp though if the date can't be converted successfully.
Also I can let you all know that links in multiple categories are handled properly =)