Office 2007 Documents

Environment: Windows Server 2003, SP2; IE 6, SP2; MS Office 2003 and
'Compatibility Pack for the 2007 Office'

I'm using Internet Explorer 6, SP2 to access documents (created with MS
Office 2003) on a temporary share all right.

However, there is a problem when I try to access MS Office 2007 documents on
the same share (i.e. IE does not recognize them; thinks it is a zip file ...).
Note: I did install the 'Compatibility Pack for the 2007 Office' and this
works fine with WINDOWS EXPLORER (i.e. Windows Explorer can read the MS
Office 2007 documents all right).

QUESTION: How to get the IS 6, SP2 (on WIndows Server 2003, with MS Office
2003) to read the MS Office 2007 documents (just like the Windows Explorer) ?

TIA
.