Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
As far as I know of .psd and .tiff are not normaly supported by the browsers anyway.
I would say there is still something in your forum software stopping the images. You do not say if the problem is they are not being converted or just not being displayed.