Thanks deepsand - that code is all in place

My analytics is tracking conversions fine and even tells me how many visits and conversions from adwords, and my adwords account is working fine tracking conversions

BUT when you go to the 'adwords' section of analytics it shows impressions and clicks on my adwords ads, but says there's been NO visits and NO conversions.

So I don't understand why it is half tracking my website but not fully? I have analytics code on every page i need it on and i have adwords code on the conversion pages too.