Yep, typo in sql file.
In the file sql/wflinks.sql replace the line
INSERT INTO wflinks_indexpage VALUES ('logo-en.gif', 'WF-Links', 'Welcome to the WF-Links.', 'WF-Links Footer', 0, 0, 0, 0, 1, 'left', 'left');
with this one
INSERT INTO wflinks_indexpage (indeximage,indexheading,indexheader,indexfooter,nohtml,nosmiley,noxcodes,noimages,nobreak,indexheaderalign,indexfooteralign,lastlinksyn,lastlinkstotal) VALUES ('logo-en.gif', 'WF-Links', 'Welcome to the WF-Links.', 'WF-Links Footer', 0, 0, 0, 0, 1, 'left', 'left', 0, 5);
Please note that all releases of WF-Links 1.06 rc2 and prior (and XoopsTube/MyTube) contain a bug that prevent entries in the table altcat not being removed when an associated link or category is deleted.
This will be fixed in next release.