Root assistance please?

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http://androidforums.com – Hi, i would really appreciate some help if anybody has the patience. I have a HTC Desire which i'm looking to root and s-off, mainly so i can have a bunch of apps on my SD card since the phone's internal memory apparently has no space for anything anymore despite my having removed almost all of my downloaded apps... but also because i'm curious to see how my phone will run with different software, what changes i can make and whether i can improve the battery life. I'm from the UK, my Desire is the Bravo A8181 version running Android 2.2.2, PVT4, delete size 20,000. I have spent A LOT of time (General)