Have you spoken to Nigel Beaumont-Rydings at Oldham as he chairs the Optim Users Group or Jim McWilliams at Hinchingbrooke, Huntingdon as they are the Philips reference site. Other users include Hemel, Lincoln, City Hosp in Nottingham and a few more I can't quite remember. Addenbrookes and St George's are also in process of implementing

There is a user group meeting scheduled for this Thursday in Lincoln.

Good luck