Not sure what Kernel for Rooting?

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http://androidforums.com – Hi, im looking to root my samsung galaxy s2 however i failed in my first attempt as i was using an out dated guide. But now i have my phone back to normal and ready to give it another go, only problem now is im not sure what kernel i should use for rooting. i read through the guide for dummies but im still confused for what kernel to use so im wondering if anyone can help me :) the kernel im currently using is - "3.0.15-1114882 dpi@DELL163#3 smp preempt" i am confused as there are no letters? Thanks for any advice! :D (General)