Got the name wrong, its the anti-roll bar drop links I bought, not the track rods. So looks like i bought the right things (same things went on my old mondeo, and that had the same rattle).......
cgi.ebay.co.uk/Citroen-ZX-STABILISER-ANTI-ROLL-BAR-DROP-LINK-RODS-x-2-/250552408264?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a561658c8
cgi.ebay.co.uk/Citroen-ZX-STABILISER-ANTI-ROLL-BAR-DROP-LINK-RODS-x-2-/250552408264?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3a561658c8