ISO: current working version of sdx

I downloaded http://www.equi4.com/pub/sk/sdx.kit this morning and
tried this:

 $ /tmp/sdx.kit update /projects/sprs_lwv/tcl85/bin/sdx.kit
 SDX: updating from http://mini.net/sync.cgi ...
unexpected reply: HTTP/1.0 404 Not Found
    while executing
"error $r"
    (procedure "rpc" line 8)
    invoked from within
"rpc $url [vfs::zip -mode c [kit2cat $path <D/$v::vers> $id $fake]]"
    (procedure "starsync::request" line 15)
    invoked from within
"starsync::request $server $path $fake"
    invoked from within
"set catalog [starsync::request $server $path $fake]"
    (file "/tmp/sdx.kit/lib/app-sdx/update.tcl" line 49)
    invoked from within
"source /tmp/sdx.kit/lib/app-sdx/update.tcl"
    ("uplevel" body line 1)
    invoked from within
"uplevel #0 [list source [file join $b $a.tcl]]"
    (procedure "run_sdx" line 17)
    invoked from within
"run_sdx"
    (file "/tmp/sdx.kit/lib/app-sdx/sdx.tcl" line 59)
    invoked from within
"source /tmp/sdx.kit/lib/app-sdx/sdx.tcl"
    ("package ifneeded" script)
    invoked from within
"package require app-sdx"
    (file "/tmp/sdx.kit/main.tcl" line 8)
    invoked from within
"source /tmp/sdx.kit/main.tcl"
    ("uplevel" body line 1)
    invoked from within
"uplevel [list source [file join $self main.tcl]]"


Is this function of sdx no longer supported, or is there a newer
version of sdx some place ?