By setting the wrong time your posts (and so on..) will display the wrong time. Look for instance at this site (Xoops.org), the time overhere is set wrong. This way if I post this reply at 13.48 it displays the wrong time 14.31(look below).
Ppl are willing to help you with specific problems, I don't think anyone is willing to help creating a new site (or you are willing to pay for it).
My suggestion: start yourself, if you're running into probs first search this site if you can't find the answer then post a question... This way you'll learn a lot yourself, XOOPS isn't that hard to understand.
Is it possible to search on the images of the imagemanager?
In other words: I have different qualifications inside the newsitems, for instance different agecategories, it would be nice if ppl can search on these ages... These agecategories are represented with an image.