Site Hacked – Idiot Proof Help Needed

Hi,

This is a repost because my other seems to have labelled ‘topic not found’ (I may have broken posting guidelines, I’m not sure)

About two weeks ago my blog traffic dropped off considerably.

I checked in Google Webmaster Tools and I had some 21,000 backlinks – all obvious spam. I contacted my host and they removed the ‘cnsxb’ folder (which seemed to house all the links). I also changed all my wordpress, host and FTP passwords and rebuilt permalinks.

However traffic on the site still remains low, about a quarter of what it used to be. Also the 21,000-odd backlinks are still showing up in Webmaster Tools, now with 180 broken 404 links.

Plus today I found some html for one of my posts on a site that had ‘.Buy Online. Free Prescription. FedEx Shipping’ attached at the end by googling ‘clothesonfilm.com’

As best I could I’ve checked all through my blog for evidence of hacking. I could not find any, even after searching all the plug-ins. Furthermore the site shows up as clean in a parasite checker.

I’ll be honest I really have VERY little technical expertise, though I do maintain and run the site myself. If anyone out there could walk me through this problem in idiot proof language I would really appreciate it. I’ve looked everywhere for help and followed what I could understand. End of my tether here.

Thanks in advance,

Chris