As to the "uploading" to "other places".... you mean other Forum Sites, or do you mean other places here at WTT.
As to the Images...
*** have a look in your browser Tools - Content - be sure to allow "display images automatically"
Both conditions may relate to corrupted ActiveX in your JAVA Cache Temporary Files.
Open JAVA Control Panel
On the JAVA Control Panel - Select - General
Click on Settings
Click on Delete Files
**** Note: Deleting temporary files from JAVA Control Panel may cause you to have to enter Username and Password on Web Sites where you might previously selected to allow your browser to "remember" or log in automatically.
Go to Control Panel - Add/Remove
Go to Sun JAVA http://java.sun.com/...loads/index.jsp
Select to download JRE 6 Update 16
Select the "offline" installation
Download "offline installation" files.
Close your Browser and other windows.
Install the fresh JAVA JRE 6 - 16
Try your browser again,
Try uploading to those "other" places.
Inspect to see that you can view "images"
Keep us posted with your progress.