i had to do pretty much the sam ething on a site.
heres how you can get rid of the website and timezone fields in the registration form:
"include/registerform.php"
find this code:
$reg_form->addElement(new XoopsFormText(_US_WEBSITE, "url", 25, 255, $url));
$tzselected = ($timezone_offset != "") ? $timezone_offset : $xoopsConfig['default_TZ'];
$reg_form->addElement(new XoopsFormSelectTimezone(_US_TIMEZONE, "timezone_offset", $tzselected));
change to:
//$reg_form->addElement(new XoopsFormText(_US_WEBSITE, "url", 25, 255, $url));
$tzselected = ($timezone_offset != "") ? $timezone_offset : $xoopsConfig['default_TZ'];
$reg_form->addElement(new XoopsFormHidden("timezone_offset", $tzselected));
in edituser.php, you can comment out the fields you do not want shown in the form.
find this text minus the // tags and add those tags.
like this:
//$form->addElement($url_text);
//$timezone_select = new XoopsFormSelectTimezone(_US_TIMEZONE, 'timezone_offset', $xoopsUser->getVar('timezone_offset'));
//$icq_text = new XoopsFormText(_US_ICQ, 'user_icq', 15, 15, $xoopsUser->getVar('user_icq', 'E'));
//$aim_text = new XoopsFormText(_US_AIM, 'user_aim', 18, 18, $xoopsUser->getVar('user_aim', 'E'));
//$yim_text = new XoopsFormText(_US_YIM, 'user_yim', 25, 25, $xoopsUser->getVar('user_yim', 'E'));
//$msnm_text = new XoopsFormText(_US_MSNM, 'user_msnm', 30, 100, $xoopsUser->getVar('user_msnm', 'E'));
//$location_text = new XoopsFormText(_US_LOCATION, 'user_from', 30, 100, $xoopsUser->getVar('user_from', 'E'));
//$occupation_text = new XoopsFormText(_US_OCCUPATION, 'user_occ', 30, 100, $xoopsUser->getVar('user_occ', 'E'));
next you can delete some things off modules/system/templates/system_userinfo.html
delete this:
<tr>
<td class="head"><{$lang_website}>td>
<td class="even"><{$user_websiteurl}>td>
tr>
<tr valign="top">
<td class="head"><{$lang_location}>td>
<td class="even"><{$user_location}>td>
tr>
<tr valign="top">
<td class="head"><{$lang_occupation}>td>
<td class="odd"><{$user_occupation}>td>
tr>
now update your system module, and you shoudl be alright.
make sure you make backups of those three files before you do anything, just incase this doesn't work correctly for some reason.