Step 3) Rasterize the type, using Layer -> Rasterize -> Type. Now center the text, and fill the backround with white, using Edit -> Fill, the options should be:

Use: White
Mode: Multiply
Opacity: 100%

Step 4) Add a Guassian Blur, using Filter -> Blur -> Guassian Blur, the radius you enter for the blur is 2.0.