[wp-polyglots] Problem with ISA-Server

[mobile arts & media]

Hai,

So once in a while i try to get access to the repository. This to 
update the Albanian translation.
Still without success. I must say: i don't have prior experience with 
Subversion, but if i can not connect i will also not get any 
experience.

I use the following command:
svn co http://svn.automattic.com/wordpress-i18n/sq

I get one of three possible answers:

subversion/libsvn_ra_dav/util.c:780: (apr_err=175002)
svn: REPORT request failed on '/wordpress-i18n/!svn/vcc/default'
subversion/libsvn_ra_dav/util.c:295: (apr_err=175002)
svn: REPORT of '/wordpress-i18n/!svn/vcc/default': 400 Bad Request 
(http://svn.automattic.com)

or:
subversion/libsvn_ra_dav/util.c:780: (apr_err=175002)
svn: PROPFIND request failed on '/wordpress-i18n/sq'
subversion/libsvn_ra_dav/util.c:295: (apr_err=175002)
svn: PROPFIND of '/wordpress-i18n/sq': 500 ( No buffer space is 
supported. The WinSock implementation was unable to allocate additional 
memory to accommodate the function request.  For more information about 
this event, see ISA Server Help.  ) (http://svn.automattic.com)

or:
subversion/libsvn_ra_dav/util.c:780: (apr_err=175002)
svn: PROPFIND request failed on '/wordpress-i18n/!svn/bln/913'
subversion/libsvn_ra_dav/util.c:295: (apr_err=175002)
svn: PROPFIND of '/wordpress-i18n/!svn/bln/913': Could not read status 
line: connection was closed by server. (http://svn.automattic.com)

For sure i'm behind an ISA-Server. I told the provider that they have 
to "configure the HTTP policy for rule". They just installed this evil 
thing and i'm not sure if they know how to regulate it (i don't know 
either).

The following information i found somewhere:
The Subversion client speaks a subset the WebDAV/DeltaV protocol to  
the mod_dav_svn server module. The short answer is:
      OPTIONS, PROPFIND, GET, REPORT,
      MKACTIVITY, PROPPATCH, PUT, CHECKOUT, MKCOL,
      MOVE, COPY, DELETE, LOCK, UNLOCK, MERGE

I guess that they didn't work on this yet, but in the meantime i would 
like to know if this is really the problem?
Or do i have also another problem? And is there a solution? https 
instead of http didn't work. Is there maybe another possible portnumber 
i can try?

Greetings Wout