[TheLastSuperman]

You can run a SQL Query:

UPDATE user SET usergroupid = '8'
WHERE icq != '';

However that will change everyone who has anything entered into ICQ into the banned usergroup (defaulted to usergroup id #8) so be careful OR add in a AND as so:

UPDATE user SET usergroupid = '8'
WHERE icq != '' AND usergroupid != '6';

So now it should run through all of the users and place them into the banned group IF they are not in the admin usergroup.

When your done w/ the query you decide to go with don't forget to update your counters in admincp so their usertitles are also updated .