Many thanks to everyone who has responded - I've now seen the light, and even learned some html into the bargain! I've now got my cache page to look like I want it to and look forward to having it go live in the next few days.
I still think that Prime Suspects 'Spend your creative energy on the cache, not the cache page' philosophy is spot on but it is winter here and a little diversion is not all bad.
Happy caching everyone :-)