Help with changing Blowfish

Hi, I need help with tutorial to change Blowfish in PuritySro media.pk2.

and I try to set up a registeration website. But I tried to register, it give me this error. Im using SSE btw.

Spoiler:

Warning: fopen() [function.fopen]: Unable to access C:\Program Files (x86)\Silkroad_System_Engine\loginserver\AccountsTemp/test.xtf in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 20

Warning: fopen(C:\Program Files (x86)\Silkroad_System_Engine\loginserver\AccountsTemp/test.xtf) [function.fopen]: failed to open stream: No error in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 20

Warning: fwrite(): supplied argument is not a valid stream resource in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 29

Warning: fwrite(): supplied argument is not a valid stream resource in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 30

Warning: fwrite(): supplied argument is not a valid stream resource in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 31

Warning: fwrite(): supplied argument is not a valid stream resource in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 32

Warning: fwrite(): supplied argument is not a valid stream resource in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 33

Warning: fclose(): supplied argument is not a valid stream resource in C:\Inetpub\vhosts\server\httpdocs\plugins\processor.php on line 34

Really need ur guys help. Thx