Joomla extension "mAvik Thumbnails" is a candidate to to take over the function of the package currently used on Joomla versions 1.5 and 2.5.

Here a first single image is placed within a content text just after this phrase, aligned "rihgt" . Superfast And this is the text which follows the first image.

Here there are two images side by side, placed after this phrase, both aligned "left". Superfast - HeckklappenSuperfast  - Heckklappen And this is the text following the two images.