Sony Ericsson E15i Wifi Tether/Portable Hotspot missing

hi guys. im new for this, i got old phone from my sister sony ericsson e15i and i wanna use for mobile hotspot. but i can find hotspot portable in menu " Wireless & Network " --> Tethering,. there only usb tether not wifi tethering.

can someone help me with this case, its use gingercruzt mod, 2.3 android. when i reboot there's clockwork cyanogend mod etc.
how can i tethering wifi from my phone? i try foxfi and barnacle its not work.

Thanks