I've got my ports open using windows firewall, no proxy required. It's a win xp 32bit box running boinc as a service. I've uninstalled and installed the latest version and still no luck.

Here's the messages
08/01/2010 20:08:23||Starting BOINC client version 6.2.28 for windows_intelx86
08/01/2010 20:08:23||log flags: task, file_xfer, sched_ops
08/01/2010 20:08:23||Libraries: libcurl/7.19.0 OpenSSL/0.9.8i zlib/1.2.3
08/01/2010 20:08:23||Running as a daemon
08/01/2010 20:08:23||Data directory: C:\Documents and Settings\All Users\Application Data\BOINC
08/01/2010 20:08:23||Running under account boinc_master
08/01/2010 20:08:23||Processor: 1 AuthenticAMD AMD Sempron(tm) Processor 3600+ [x86 Family 15 Model 79 Stepping 2]
08/01/2010 20:08:23||Processor features: fpu tsc pae nx sse sse2 3dnow mmx
08/01/2010 20:08:23||OS: Microsoft Windows XP: Professional x86 Editon, Service Pack 2, (05.01.2600.00)
08/01/2010 20:08:23||Memory: 894.48 MB physical, 2.12 GB virtual
08/01/2010 20:08:23||Disk: 141.29 GB total, 27.08 GB free
08/01/2010 20:08:23||Local time is UTC +0 hours
08/01/2010 20:08:23|World Community Grid|URL: http://www.worldcommunitygrid.org/; Computer ID: 946469; location: (none); project prefs: default
08/01/2010 20:08:23||General prefs: from World Community Grid (last modified 01-Jan-1970 00:00:01)
08/01/2010 20:08:23||Host location: none
08/01/2010 20:08:23||General prefs: using your defaults
08/01/2010 20:08:23||Reading preferences override file
08/01/2010 20:08:23||Preferences limit memory usage when active to 447.24MB
08/01/2010 20:08:23||Preferences limit memory usage when idle to 670.86MB
08/01/2010 20:08:23||Preferences limit disk usage to 9.31GB
08/01/2010 20:08:24|World Community Grid|Started upload of na664_00039_17_0
08/01/2010 20:08:24|World Community Grid|Sending scheduler request: Requested by project. Requesting 0 seconds of work, reporting 1 completed tasks
08/01/2010 20:08:46|World Community Grid|Temporarily failed upload of na664_00039_17_0: connect() failed
08/01/2010 20:08:46|World Community Grid|Backing off 1 min 0 sec on upload of na664_00039_17_0
08/01/2010 20:08:49|World Community Grid|Scheduler request failed: Couldn't connect to server
08/01/2010 20:09:46|World Community Grid|Started upload of na664_00039_17_0
08/01/2010 20:09:49|World Community Grid|Sending scheduler request: Requested by project. Requesting 0 seconds of work, reporting 1 completed tasks
08/01/2010 20:10:08||Project communication failed: attempting access to reference site
08/01/2010 20:10:08|World Community Grid|Temporarily failed upload of na664_00039_17_0: connect() failed
08/01/2010 20:10:08|World Community Grid|Backing off 1 min 0 sec on upload of na664_00039_17_0
08/01/2010 20:10:14|World Community Grid|Scheduler request failed: Couldn't connect to server
08/01/2010 20:10:31||BOINC can't access Internet - check network connection or proxy configuration.