Webhotel structure

Hi PHP experts What is the overall structure on webhotels, how do I remove/clean everythink including everythinnk liek databases etc? Sorry if this is not the proper news group for this question, please redirect me. I am a newbie trying to make my osn webside with a minimum effort. First I had a student to make some think for me, but he never finished it, so the useless remains are on my web. My first plan was to use php gallery, but my web host surftown do not support safemode off. So I found coppermine, surftown even support the install as one click. First trial looked good, but then I ran into trouble, I get different error messages. So I would prefer to remove everythink and start all over . best regards Peter Sørensen