Out of interest are we talking a raw data ILS or using a flight director ?
Not sure I have quite the confidence as one of the posters above who claims instrument flight to be bread and butter stuff for anyone with an instrument rating. I have flown IMC for the last 25 years and I always move up a gear of concentration and alertness when entering cloud or decreased visibility environments.
I wish the pilot well and hope he receives some extra training to regain confidence in the black arts.