Pretty sure that year would be shimmed tappets. Of course many of the FIRE engines are shimmed, which, as Charlie says, are very easy to check once you've got the cam cover off but not so easy to do anything about if they require shims to be changed. On the bright side it's very seldom to find them much outside the acceptable clearances. Worth considering too that it can be a bit of a problem getting just the thickness of shim you need.
I tend not to do anything with them unless they are "ticking" loudly with the engine hot. You can expect to hear them ticking from a cold start because it takes a few seconds for the oil to get up to the top end of the engine from a cold start, especially if it's been sitting for a few days without being started. I run the Panda and my boy's Punto on 5w-40, rather than 10w-40 as the "thinner" cold rating probably lets the oil get up there just a wee bit quicker.
As you say, hydraulic lifters/tappets/cam followers/ whatever you want to call them, maintain the clearances by "hydraulicing" themselves with engine oil and are non adjustable. If they are noisy it's a rebuild type job, although often only one or two will need replaced and if the engine is old and not going to be run for very much longer you can do them on the basis of only renewing the damaged/worn ones. Clean engine oil, changed frequently helps a lot if you've got hydraulic lifters - Maybe we should all just be aware clean engine oil changed frequently is a must with today's more intricate engines generally!