tree buffer style

I am using ecb on windows.

Now although ecb-tree-buffer-style is image, I get only ascii vertical
bars displayed.

Now the faq says:

GNU Emacs <= 21.3.X for Windows does not support image-display so ECB
uses always ascii-guide-lines even when here the image-style is set in
ecb-tree-buffer-style.

and my versions are as follows:
ecb version is 2.32
emacs version is 22.1.1

So is there something else I am missing?

Thanks

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