2) Herko has already answered that - although it wasn't obvious that it also covered moving host completely.
Edit your [xoops-root]/mainfile.php to reflect the new path and URL for your site.
Cusix Software
.odd A:link {color: #000000}
.odd A:active {color: #000000}
.even A:link {color: #000000}
.even A:active {color: #000000}
.odd a {color: #000000}
.even a {color: #000000}
tr.odd td a {color: #000000}
tr.even td a {color: #000000}
td.odd a {color: #000000;}
td.even a {color: #000000;}
$definition = ereg_replace("'","'",$definition);
$term = ereg_replace("'","'",$term);
$myts =& MyTextSanitizer::getInstance();
$definition = $myts->addSlashes($definition);
$term = $myts->addSlashes($term);