Custom Replacement Thread Title Problems

In the admin control panel we have the option of adding custom replacement words. I set up my replacement words to be links of common words that people were using. An example of that would be if someone typed in a post that they were "thinking about buying a new car". I have my replacement change it to "thinking about buying a new car " It allows me to use my vbulletin as a way to further promote products that we sell on the rest of the website. The problem is that if a keyword is used in the title of the thread it messes up the links to the rest of the thread and sometimes totally removes the link to the content of the thread. Does anyone know of a way to set it up so that the Replacement variables do not apply to titles of threads?

[ptbyjason]

bumping this again. Someone has to know of a way to cancel replacements in the titles of threads.