Rosie, if you'd like a free account (with simple, easy to read agreement & lots of space for pics) I suggest MyOpera. Loading pics is very easy & the capacity of the site is enormous, so you'll have lots of space for lots of pics for your cats! MyOpera home page

Several catters have sites there, & here's Mudcat's MyOpera page

sandra (who is not owned by a cat, but might be again one day)

Sandra in Sydney at My Opera