First Topic post problems

Hi, im having some problems with first topic post. Ive uploaded a jpg to forums/images/img_thumbs that i wanted to set as my no pic image. I turned it on in the config, set my pic size to 100 and made a jpg that was 100px X 100px for the image. The image did not turn up i got the "no image" place holder up (i turned that on as well) instead.
Also when a thumbnail is posted, even at 80px wide it causes the formatting of my topics panel to screw up

This happens in both prosilver and se gamer: light themese i have
Any help would be greatly appreciated
Thanks
Also when a thumbnail is posted, even at 80px wide it causes the formatting of my topics panel to screw up

This happens in both prosilver and se gamer: light themese i have
Any help would be greatly appreciated
Thanks