[master4g]

When I installed the wireless tether program it says "not root"

I am new to android and just got my phone last night. I follow the insturctions and Im pretty sure I rooted the phone. What I did was installed the samsung update utility and downloaded this file: SPH-M900_MR2_DE03_REL_1-joeykrim-recovery-2.1.3 and replaced the binary and did the update and now i am on 2.1. Is that all I needed to do to root? I watched this youtube video where the guy also put some SDK v5 file in the sd and tried running it, which I didn't do cuz I tried it with another "custom SDK" and it ended up making my phone get stuck at the "Samsung" logo when the phone turns on, so I ran the samsung update utility again and put this file back on: SPH-M900_MR2_DE03_REL_1-joeykrim-recovery-2.1.3

One thing tho, on step stick it says:
8. Check build MENU>SETTINGS>ABOUT PHONE>BUILD NUMBER if it reads CUSTOM KERNEL VERSION you've rooted your phone

but when I go there, it says : Eclair.DE03 , is that what I should expect?

any suggestions?

thanks