Hi gish, firstly welcome to the 'bolt from a fellow Brit!
It's O.K
I speak your language! (Well...almost!)If ye ken whit ah mean!
What was the problem you encountered? As Bill said they can be tricky.
The one piece glass is generally easier than the 2 piece(pre '54)
More info,or even better... pictures will help in the diagnosis.
Jock
