Whenever I try to open up radiant it brings up a window that wants me to open up a .prj file in the folder 'bin'. When I open the only .prj file in the folder - codwaw.prj - the window closes and launcher says I am running radiant even though no radiant window appears. When I press x on the open window an error box comes up that says:

Unable to load project file. It was unavailable in the scripts path and the default could not be found
GetLastError() = 0
An unrecoverable error has occurred. Would you like to edit Preferences before exiting Q3 Radiant?

I own a steam copy of WaW and I have installed my mod tools at C:\Program Files (x86)\Steam\steamapps\common\Call of Duty World at War which to the best of my knowledge is where my game is installed

If anyone could help I'd be very grateful. 

Whenever I try to open up radiant it brings up a window that wants me to open up a .prj file in the folder 'bin'. When I open the only .prj file in the folder - codwaw.prj - the window closes and launcher says I am running radiant even though no radiant window appears. When I press x on the open window an error box comes up that says:

Unable to load project file. It was unavailable in the scripts path and the default could not be found
GetLastError() = 0
An unrecoverable error has occurred. Would you like to edit Preferences before exiting Q3 Radiant?

I own a steam copy of WaW and I have installed my mod tools at C:\Program Files (x86)\Steam\steamapps\common\Call of Duty World at War which to the best of my knowledge is where my game is installed

If anyone could help I'd be very grateful. 

did you try to run luncher as an admin ? If didn't work try to download UGX all in one mod tools pack and install it.

Whenever I try to open up radiant it brings up a window that wants me to open up a .prj file in the folder 'bin'. When I open the only .prj file in the folder - codwaw.prj - the window closes and launcher says I am running radiant even though no radiant window appears. When I press x on the open window an error box comes up that says:

Unable to load project file. It was unavailable in the scripts path and the default could not be found
GetLastError() = 0
An unrecoverable error has occurred. Would you like to edit Preferences before exiting Q3 Radiant?

I own a steam copy of WaW and I have installed my mod tools at C:\Program Files (x86)\Steam\steamapps\common\Call of Duty World at War which to the best of my knowledge is where my game is installed

If anyone could help I'd be very grateful. 

I had this problem once or twice awhile ago the easiest way to fix it is to replace your bin with update 1.4's bin folder or the latest update that involved the bin folder then when loading radiant, the box's will be a bit messed up just drag them into place. Hope this made sense.