RSS spam problems REWARD FOR FIXING!!

I have RSS spam. I host my wordpress on my own site, I have updated my wordpress, to a recent version, and spent hours hunting down these culprit files but to no avail. I am willing to pay a reward if someone can fix it, but of course there is the problem that this person could screw up my site, so i would need some assurance..some how. Ok so this is flawed longshot, but any help would be greatly appreciated. email me at alex.cf (at) hotmail.co.uk

alex