All issues with MS Word 2007 seem to be sorted out now.
If you have Vista you will need at least EndNote X1. There is also information on restoring your EndNote toolbar in Word, under CWYW 1 on EndNote's FAQ site.
EndNote seems to work much better on Windows 7 than on Vista. EndNote X4 or later versions are recommended for Windows 7.
Answers
All issues with MS Word 2007
All issues with MS Word 2007 seem to be sorted out now.
If you have Vista you will need at least EndNote X1. There is also information on restoring your EndNote toolbar in Word, under CWYW 1 on EndNote's FAQ site.
EndNote seems to work much better on Windows 7 than on Vista. EndNote X4 or later versions are recommended for Windows 7.
Microsoft also provides information about opening Word 2007 documents with Word 2003 (you need to install a patch to do this).