I fitted front fogs to my facelift 75 at the weekend. I purchased the bits required from eBay/Rimmers over the past few months.
One thing which puzzled me was what type of lamp was required - I found information was contradictory as to whether the same lamp was suitable for the Mk1 and Mk2.
I can now confirm that the same lamp fits both the old and new models. The following lamp will NOT fit the 75, despite most eBay sellers stating that it will:
http://cgi.ebay.co.uk/BRAND-NEW-MG-Z...QQcmdZViewItem
I believe this lamp will fit the ZT only.