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in theme-functions.php just add a condition for the custom_field cp_street
// mod on line 421
elseif($result->field_name != 'cp_price' && $result->field_name != 'cp_street' &&...

php speedy plugin :
// in config.php change the following :
## On or off
$compress_options['active'] = "0"; // deactivate if you want to log in by netpix
// if you turned this to 1 the...

I've just tested your problem on a test site the speedy plugin, it seemd to work fine with theses option (see config.php in libs\php_speedy\config.php)
mine is that one if it can helps :

check thin link it would helps : http://codex.wordpress.org/Using_Permalinks
Your server could possibly not accept permalinks ??

got the same problem, I don't want to show Paypal email in the extended profile,
then I modified the theme_profile.php as this in line 30 :
) // commented
/* ,'paypal_email' => array(...

// display the login message in the header in \wp-content\themes\classipress\includes
if (!function_exists('cp_login_head')) {
function cp_login_head() {
if (is_user_logged_in()) :...

It should have been here : \wp-content\themes\classipress\includes\theme-functions.php

[QUOTE]// display the login message in the header line 191 [classipress 3.1.6]

<?php...