Hi there!
It is true that if you cut from chemsketch and try to paste a structure into, say, word (under cxoffice, of course!) you get nothing.
BUT, try this:
In a word document select insert --> object ---> ACD/chemsketch
then a chemsketch window opens
edit your structure and select from the file menu "close and return to MS word".
that's it!
Once you have a structure in word you can double click on it and chemsketch opens without problems.
Bye,
Mauro