tables: problem with font-size, spacing & img

HTML2PDF works quite good and is superior to many other classes when it comes to tables. However, there's still a few annoying bugs (or maybe i'm just doing something wrong?)
- inside a it will not alter the font-width. i tried using <H2> tags (that made even the text after the closing tag bold), , <div style= etc., but nothing worked. The example on the website (with the table) doesn't show any differences in size either, so maybe this is a known bug?
- images will align to the left of a cell. i can't get it to the center. I've tried a workaround with extra cells, but unfortunately the extra cells beared another bug. They just wouldn't stick to the width i set for them. My solution was to push the image with some text that had the same color as the background.
- the spacing between 2 table-rows is quite big. i couldn't find anything to change that
apart from all that, it works quite nice :-)