I think I bricked my Tab

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http://forum.xda-developers.com – As I was trying to install recovery on my tab, I think I screwed up big time. After rooting following this guide(which worked) this is what happened when I tried to restart to recovery from the Rom Manager app (I stress : I didn't install the recovery from the Rom Manager, I know it's not the proper one) : http://imgur.com/SBAb8 It's the screen I get when I launch the tab with the power button. Worse : this is what I get when I power it on holiding the volume up button : http://imgur.com/LqqFC It's bad isn't it ? Any way to fix it ? It won't power off. Thanks... (HowTos)