I didn't realize the 88V had a BT interface. As far as I knew they only had network (wired and wireless), RS-232, USB, parrallel and the IBM P7 interfaces.
a) Do you have an app to print to it? b) Are you trying to write an app and need help with the SDK?
If a) then you probably need to contact the app manufacturer.
If b) then you should contact Epson for help with their SDK.
When I was in POS last (2010) we did not have a BT interface touse with TM-88's and our iDevice app, we printed over the wireless network.
Nevermind - do you mean this printer?
Mobilink Wireless Mobile Printer
http://pos.epson.com/products/prodspmop.htm
You may want to get with your vendor if that is the printer. I remember having issues with that printer connecting to a WinMobile BT device also.
I don't ever remember getting our iDevices connected to it and our developers could never quite figure out what was wrong.