Unable to Install in Eclipse

I'm using Eclipse IDE for Java Developers, version Indigo.

Windows Xp, JRE 1.6.0_21 (no JDK).

I keep getting this error message:

Server returned lastModified <= 0 for http://wireframesketcher.com/updates/content.jar

Can you send me the log file as found in workspace/.metadata/.log? Do you use any proxy that may interfere with the installation? I just tried locally and the update site works as it should for me.

I am using a proxy server (and can't change that - my company requires it), but I can access and download other plugins via Eclipse with no issues.

I'll send my log info shortly.

I never received the log file. Do you still have this problem?