Open up a new image document in Photofiltre along with this.
Resize the picture of flames to a smaller size like 500px for the width.
Using the Text tool, type whatever you want but instead of clicking OK, click Transform to Selection.
Move your selection to where you want the flames to be in your text.
Copy and paste your selection into a new image.
Go to Filter >> Visual Effect >> Motion Blur >> Vertical.
Paste your text again but on top of the blurred out text.
Repeat Step 3 but move the text on top of the text already there.
Now go to Filter >> Stylize >> Drop Shadow.