[Lynne]

I guess I don't understand what you are trying to do. You want to put the phrase $vbphrase[article_preview] into the phrase $vbphrase[comment_thread_firstpost]? I thought you were trying to put a variable in there, not a phrase.

Did you look at the file I mentioned? It's around line 944 that the phrase is created. You would (maybe) have to edit that to pass the other variables you want to use in there and then you would enter the variables as {2} and {3} (just like the page url is a variable that is entered as {1} and is passed to the phrase in that line I mention).