Linker (linklerde Türkçe karakter ve boşluk sorunu?)

Options +FollowSymLinks
RewriteEngine on
RewriteRule (.*)-(.*)\.htm$ index.php?cat=$1&a=$2
Options +FollowSymLinks
RewriteEngine on
RewriteRule (.*)-(.*)\.php$ review.php?a=$1&sid=$2

<?
function kisalt($deger) {
if (strlen($deger) >'250') {
$deger = substr("$deger",0,245)."...";
}
return $deger;
}

function turkce_yap($deger) {
 $bozuk=array(" ","ı","İ","ş","Ş","ö","Ö","ü","Ü","ç","Ç","&","_#350;","_#305;","'","\"","_#287;","?","%","#8217;");
 $duzgun=array("-","i","I","s","S","o","O","u","U","c","C","_","","","","","","","","");
 $metin=urldecode($deger);
 $metin=str_replace($bozuk,$duzgun,$metin);
 return $metin;
}

function iyice_duzelt($deger) {
$bul=array('ı','ü','Å?','ç','ö','Ä?','Å?ov','ÄŸ','ÅŸ','Ä°','Ä°','Ş','ä','"','.','é','é','ú','º','ã','ê','É',':','%','½','Ğ','(',')','[',']','/');
$degis=array('i','u','s','c','o','g','Sov','g','s','I','I','S','a','','','e','e','u','','a','e','E','','','','G','-','-','-','-','-');
$deger = str_replace($bul,$degis,$deger);
return $deger;
}
?>

<?
switch ($_GET[mode]) {
case "anasayfa": include ("index.php"); break;
case "domain": include ("domain.php"); break;
default: 
?>