YafaRay plugin; update roadmap and change list

[Neon22]

I'm sorry to be so dense and to ask such a NOOB Question. :-(
I can install Yafaray but the Beam file is giving me trouble.
I can't install it from menu - no permissions. If I drop it in the import/export folder (with renderman and kerky beams) - it's not seen on menu.
How do I get it installed ?
sigh...

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OK. I put beam into plugins\import_export folder.
I've found and selected the binary in "plugin-preferences" to point to the extracted C:\Yafaray folder.
The binary is called yafaray-xml.exe

Rendering error: 1
15840us File|Render|Yafray|False
1us File|Render|Yafray
Exporting to: c:/YafaRay/scenes/wpc_yafray-2236-UJVJUM.xml
for render to: c:/YafaRay/scenes/foo.tga
Mesh w_cone1: triangulating...done
Mesh w_cone1: exporting...done
Rendering Job started <0.54.0>:
> c:/YafaRay/YAFARA~1.EXE wpc_yafray-2236-UJVJUM.xml
INFO: YafaRay 0.1.2
ERROR: Environment: Couldn't find registry key.
ERROR: Please fix your registry. Maybe you need add/modify
ERROR: HKEY_LOCAL_MACHINE\Software\YafaRay Team\YafaRay\InstallDir
ERROR: key at registry. You can use "regedit.exe" to adjust it at
ERROR: your own risk. If you are unsure, reinstall YafaRay
ERROR: Getting plugin path from render environment failed!

Rendering Job returned: 1
Export time: 0.000"
Render time: 0.031"
Total time: 0.031"
Rendering error: 1

Clearly the registry key is missing, but the wpc_yafray-2236-UJVJUM.xml is also not in the directory (Maybe its being deleted on cleanup ?)
There is no "installer" and I've set the path manually. but its also calling the old 8.3 syntax...

Even after renaming exe to be yafa.exe I get same error.
> c:/YafaRay/yafa.exe wpc_yafray-2236-RWVJUM.xml
Still no xml...


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Adding the Registry Key manually did not change the message at all (but might have got it wrong...)