Sorry that none of that has worked. I saw eris and read aria......
Either way, I wrote it up, maybe it will help someone.
I have been folowing the aria since my father in law had me root his. I used the exact computer and same process to do both. I only got root on the aria, never installed a rom or anything, he just wanted swipe like my wife and I have. I followed one thread or another, and it reccomended running an app called usbdeview. I deleted all htc drivers that were using usb. I then followed advice on another thread to install pda.net with links. Then follow eugene373's htc root method. When it finally worked it was easy. I did it another 10 times before I finally figured out how to get clockwork to take.
Only other thing to make sure you have is the newest java installed. Not the normal one but the one for developers. If ya are stuck, try reading a little in the htc esspresso (mytouch slide) forums. The two phones are pretty much the same on the inside. Different wifi and a few other things. See if ya stumble onto your exact problem. I am not saying to flash slide roms or anything.
Best of luck to you
Sent from my rooted Mytouch Slide using XDA app.