I tried it today with sidux (a distribution of the Debian sid branch) and it looks also fine in the kde environment: the status of away-users were visible and the icon in the systray with a transparent background. They uses the latest xchat-2.8.6.
Then I added the sid repository and installed xchat-2.8.6 on Lenny, and had still the same problem: no away-status visible and the xchat-icon with white background in the systray. So it works still well in Etch, in Lenny not if kde is used but with another windowmanager like fluxbox, and on other distributions like sidux also in kde.
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