From the change log:
We [have] added
- options for horizontal and vertical content alignment
- fixed some issues with the previous update.
Header Tiles went though an update to the UI last month, making it one of the easiest 'live tile' editors that I've come across in the Windows Phone store. With a number of styles of tiles available, and full editing of the text and content, Header Tiles is simple to use and creates striking yet usable results.
You can download Header Tiles for free via the AAWP App Directory, and let us know in the comments what sort of customised tiles you make!