custom character replacement

hi added custom character replacement:
'& #224;' => 'a',
'& #7843;' => 'a',
'& #227;' => 'a',

and got this error:


Parse error: syntax error, unexpected T_DOUBLE_ARROW in /home/domain/public_html/forum/includes/config_vbseo.php on line 777

i no longer have the error above but,

i tried the code array on this page:
http://www.vbseo.com/f2/special-unicode-character-replacement-18914/

but the URl still not showing correctly.

i also tried modify the functions_vbseo_url.php by Oleg Ignatiuk



any ideas ?