[racket] help with error messages when installing socket from Planet?

hi, I'm a beginner with Racket and ran into this when trying to install 
socket from within DrRacket:

#

Welcome to DrRacket, version 5.0 [3m].
Language: scheme; memory limit: 256 MB.
 > (require (planet vyzo/socket))
Error [CALL] 121 in _constants.c: Bad place for function call, starting 
tok is scheme_make_immutable_sized_byte_string.
Error [CALL] 120 in _constants.c: Bad place for function call, starting 
tok is scheme_make_immutable_sized_byte_string.
Error [CALL] 118 in _constants.c: Bad place for function call, starting 
tok is scheme_make_immutable_sized_byte_string.
Error [CALL] 117 in _constants.c: Bad place for function call, starting 
tok is scheme_make_immutable_sized_byte_string.
Error [CALL] 116 in _constants.c: Bad place for function call, starting 
tok is scheme_make_immutable_sized_byte_string.
Error [CALL] 25 in _constants.c: Bad place for function call, starting 
tok is scheme_intern_symbol.
make: failed to make C:\Documents and Settings\george\Application 
Data\Racket\planet\300\5.0\cache\vyzo\socket.plt\3\2\compiled\native\win32\i386\3m\_constants.c; 
xform: Errors converting
open-input-file: cannot open input file: "C:\Documents and 
Settings\george\Application 
Data\Racket\planet\300\5.0\cache\vyzo\socket.plt\3\2\_constants.rkt" 
(The system cannot find the file specified.; errno=2)
setup-plt: error: during Early Install for <planet>/vyzo\socket.plt\3\2 
(mzsocket)
setup-plt:   make: failed to make C:\Documents and 
Settings\george\Application 
Data\Racket\planet\300\5.0\cache\vyzo\socket.plt\3\2\compiled\native\win32\i386\3m\_constants.c; 
xform: Errors converting
setup-plt: error: during making for <planet>/vyzo\socket.plt\3\2 (mzsocket)
setup-plt:   open-input-file: cannot open input file: "C:\Documents and 
Settings\george\Application 
Data\Racket\planet\300\5.0\cache\vyzo\socket.plt\3\2\_constants.rkt" 
(The system cannot find the file specified.; errno=2)
open-input-file: cannot open input file: "C:\Documents and 
Settings\george\Application 
Data\Racket\planet\300\5.0\cache\vyzo\socket.plt\3\2\_constants.rkt" 
(The system cannot find the file specified.; errno=2)
 > (require (only socket/test run-tests))
. only: not a require sub-form in: (only socket/test run-tests)

#


I've read something on the list that said:

the problem was that *Planet* (or `raco setup') would drop
entries from "cache.rktd" when the corresponding package has "info.ss"
instead of "info.rkt". Of course, almost all *Planet* packages currently
use "info.ss"


And though socket does use an info.ss, I'm not sure if this is the 
problem here. Can anyone point me in the right direction?


thanks, George