Forum post editing?

[m.stratford86]

Could I get my forum posts edited because I don't want my old (non existent) domain names coming up in google search.

I would like to change all posts containing http://mstratford.co.cc, http://mstratforddesign.co.cc and change them to http://mstratforddesign.co.uk.

I would also like to delete posts linking to files/pages that no longer have the content they we added for too.

Is this possible?