Curvaceous is a plug-in for Movable Type 4 that causes text to flow smoothly around the edges of irregularly shaped images. Once installed and enabled, the plug-in works in the background, converting any images that are either left-aligned or right-aligned. The screenshot shown on the download page illustrates the concept.

Download the plug-in here.

Please note that this plug-in may signficantly increase your build time. Read the plug-in instructions for details on how to convert only the selected images, or how to convert all images except the ones marked for exclusion.