Re-install CorelDraw X4

I know this has been asked elsewhere on the forum but no-one seems to be able to come up with a satisfactory solution.

We have legally bought CorelDraw X4 (quite some time ago) and are trying to re-install it after a system crash but the installer reports that it can't find ica.msi

We've done some web searching and keep coming up with keygens and dodgy download sites and the like.  Can anybody help us by providing a good link to the original trial version of CorelDraw X4 or failing that, perhaps someone can point me to a valid copy of this missing ica.msi file.

We've also tried calling Corel but ALWAYS get the message that their helpline is UNEXPECTEDLY busy... ho hum!

Many thanks in advance,

Desperate CorelDraw User Surprise