Rene.
Newbie
The phone is correctly rooted, and I'm using this method:
FASTFORWARD TO 5:17 PLEASE
YouTube - How To Root & Sideload Apps on the Samsung Captivate with Windows
I get stuck here trying to install a HTC_IME.apk file (trying to get the HTC Keyboard on my Cap) to my phone. I've ran it as a regular user and as a su user in my terminal. Is this an error on my phone's end? Maybe I missed a setting during/after rooting my phone?
Help would be greatly appreciated 
maerlim's guide did not look linux friendly (few things are different in the linux terminal than the windows command prompt) which is why I haven't tried it, but if any other linux users followed his directions I'll try to give it a go.
*******EDIT*******
Ok so I ran ./adb devices to view my device just for the hell of it and here's what returned:
My phone is mounted correctly, USB debugging is on, what the heck did I miss?
From what I can gather it probably does not even detect my device 
FASTFORWARD TO 5:17 PLEASE

YouTube - How To Root & Sideload Apps on the Samsung Captivate with Windows
I get stuck here trying to install a HTC_IME.apk file (trying to get the HTC Keyboard on my Cap) to my phone. I've ran it as a regular user and as a su user in my terminal. Is this an error on my phone's end? Maybe I missed a setting during/after rooting my phone?
Code:
rene@rene:~/Android SDK /android-sdk-linux_86/tools$ sudo ./adb install HTC_IME.apk
[sudo] password for rene:
error: insufficient permissions for device

maerlim's guide did not look linux friendly (few things are different in the linux terminal than the windows command prompt) which is why I haven't tried it, but if any other linux users followed his directions I'll try to give it a go.
*******EDIT*******
Ok so I ran ./adb devices to view my device just for the hell of it and here's what returned:
Code:
rene@rene:~/Android SDK /android-sdk-linux_86/tools$ ./adb devices
List of devices attached
???????????? no permissions
From what I can gather it probably does not even detect my device 