Is there where I can find the schematic files for the Xbee 900 HP PRO?

Are you referring to the actuall scheamtic of the Radio or of how to interface to the XBee module?

I am refering to the schematic of the radio or the actual development board for the Xbee 900 HP this would great help me trouble shoot some issue that I currently have with UART communications between the Xbee and my uC(MSP430)

The interface board schematic can be found both in the Support section of the web site under the XBee product you are using, in the knowledge base under the Serach name Schematic and in the Documenattion section of the Marketing pages.