Computerlinks, which is 53 per cent owned by Fayrewood, the computer services group founded by Mr Pierce Casey and listed in London, has announced a 157 per cent increase in pre-tax earnings to 7.2 million deutschmarks (€3.7 million). Turnover at the group, which trades on Germany's Neuer Markt, was up by 106 per cent to DM90.9 million.