Ancestry.com has the following resource:
Coweta County chronicles for one hundred years
However, the index doesn't contain an entry for Vickery.
It actually looks like the title of the journal is Coweta Courier and it appears to be available via FindMyPast (not sure if this link to contents of 1999 volume will work). I don't have access to that database but I know others do.
It also looks like issues are relatively cheap if you wanted to buy a copy?