It's available from Amazon at £3.99 for the disc.
Add to this the the size and number of mods now available it's a 'must have'.
I've got 4 discs on the shelf, two unopened, in case the ones I use go wrong in the future when it's no longer available.
The online fun with 1946 is fantastic, where 'cliffs' is in it's infancy.
Go buy it. Twice. And then download all update patches from Mission4today, then HSFX and Ultrapack.
The graphics do look dated now, but you won't regret it.
Have fun!