problem with loading member profiles ,getting error

[puregraf]

i just noticed this, but viewing the user profiles works fine if you are inside a thread and from a users post, click on the users name and a drop down small menu comes down and you select view profile from there

but if you click on a username from anywhere else on the forum such as the forum home, it gives me this error:

Fatal error: Cannot redeclare pp_get_ext() (previously declared in /home/puregraf/public_html/graffiti-gallery/inc_vbcat.php:70) in /home/puregraf/public_html/graffiti-space/member.php(838) : eval()'d code on line 59



i have tried this:

function pp_get_ext($filename)
{
return substr($filename, strrpos($filename,"."));
}

comment it out like this

/*function pp_get_ext($filename)
{
return substr($filename, strrpos($filename,"."));
}*/

but it didnt work, gave me the error:

Fatal error: Cannot redeclare pp_is_image() (previously declared in /home/puregraf/public_html/graffiti-gallery/inc_vbcat.php:74) in /home/puregraf/public_html/graffiti-space/member.php(838) : eval()'d code on line 64


also the only way to see member profiles like i described above now gave me this error after i did this:

Fatal error: Call to undefined function: pp_get_ext() in /home/puregraf/public_html/graffiti-space/member.php(838) : eval()'d code on line 68


how else can i fix this? i changed the code back to how it was before.
i read i can fix it by renaming the function :

function pp_getextensionprofile($filename)
{
return substr($filename, strrpos($filename,"."));
}

and he said i have to "you have to change all calls to that function to if you do this ...."

i dont understand what are calls and where do i change this?

thanks