Original post:
[size="5"]Screenshots[/size]

[img]http://blah/myimage.blah[/img]

[size="5"]Description[/size]

Mangling:
[code][img=http://link/to/threadhttp--,,--//[url=http--,,--//blah/myimage.blah]http--,,--//blah/myimage.blah [/url]]