PRS-T1 Problem with my PRS-T1, need help!

[rangdaz]

I'm newbie. I just got PRS-T1 today and I try to install rupor's root. But this reader has previous root. I don't know the name of it. I see how to recovery to stock from this tread.

http://sonyfmngr.sourceforge.net/prsT1.htm
it link to sd recovery made by uboot.

I try it but when it boot my reader was empty. There is nothing in it and Zeam launcher and any thing from former root has gone. I can't do anything. but it can boot and transfer with computer. I'm lucky that it isn't it but I want to know about that

1. Is my reader still good? If not, how should I do for it.
2. Can I install rupor's root. I just try from install flash_reader.bat but it has error about xcopy. I don't know about it.

sorry for my bad English. Thanks