Need help Please!! Problems Upgrading to new Official Rom.

[imethos]

Ok first post and i have a real issue.
I Have never run a custom rom and i am trying to update to the latest official htc rom posted jul 21. I understand that if flashing an official rom there is nothing that needs to be done but to run the .exe. but every time i run the program it gets stuck in bootloader with the three colors. My current rom is the previous update with rev a and gps. It doesnt go past 0% and the phone just goes to the bootloader screen with the red green blue and gray colors. any suggestions??? I really need some help as i really want to install 6.1 but everytime i run the RUU activesync closes and it appears my pc does not recognize my Mogul and then the bootloader screen comes up. the screen says.
TITA100
SPL-2.06.0000
CPLD-9
The gray section says USB. if i remove the usb cable it says serial.

Any help is greatly appreciated!! Thanks in advance!!