Can one word in the post, published earlier, be replaced?

Hi! When I posted a message to be checked some time ago, I forgot to replace the actual name of the company by "CompanyX", as I typically do, when posting texts to Englishforums. And I do not have priviledges to edit posts. The Company name in question should not be indexed yet by any Seach Engine (according to a advertising campaign on this company, which will be launched soon on Internet). But due to my mistake, Google now indexes it, when I enter the Company Name in search string.

Is it possible to replace this name now by "Company X"? I appreciate if you could get back to me on this, I will provide the direct URL to the post, where this company name is seen. I would not like to specify it right here for an obvious reason, I'd rather email it to you, if I am allowed.

Thank you in advance for our understanding. This is very important.

Many thanks for prompt reply!

The Company name is in this post (I do not name it here, so that Google could not index it again): http://www.englishforums.com/English/CouldCheckPassage/cmwmn/Post.htm 

It is in the third paragraph of the passage. The first word in the sentence "******** provides professional software development and programming services including Windows Application Development..." should be replaced with "CompanyX"

Thank you again! 

Sorry, I do not think so. Please see attached screen shot. I marked the word in question in dark-red. When you replace it, please delete the attachment if posible. Once again, thank you for your assistance.