With 8 MHz in and wanting to run the chip at 48 MHz
Code:
@ __CONFIG    _CONFIG1L, _PLLDIV_2_1L & _CPUDIV_OSC1_PLL2_1L & _USBDIV_2_1L
And the "level" converter should not be used with mode 6, with the converter in place try mode 16390.
http://melabs.com/resources/ser2modes.htm

The iChip config utility might help make sure the module is setup correctly
http://www.connectone.com/support.asp?did=30
They say vista is not supported by I run it on win 7. Set a restor point just to be safe...

Thats what I see....