I'm compiling the latest 7.13.0 from the command line in a Microsoft
VS.NET 2002 environment. I have installed and successfully compiled a
static lib version of openssl-0.9.7e in e:\dev\openssl-0.9.7e, and set
the proper OPENSSL_PATH to this folder. libcurl is installed into the
e:\dev\curl-7.13.0 folder. I have verified that the openssl includes
are all there.

The following error is what I am getting:

E:\dev\curl-7.13.0>nmake vc-ssl

Microsoft (R) Program Maintenance Utility Version 7.00.9955
Copyright (C) Microsoft Corporation. All rights reserved.

        cd lib
        nmake /f Makefile.vc6 cfg=release-ssl

Microsoft (R) Program Maintenance Utility Version 7.00.9955
Copyright (C) Microsoft Corporation. All rights reserved.

        cl.exe /MD /O2 /DNDEBUG /DUSE_OPENSSL /DUSE_SSLEAY /I
"c:\dev\openssl-0.9.7e/inc32" /I "c:\dev\openssl-0.9.7e/inc32/openssl"
/I. /I../include /nologo /W3 /GX /DWIN32 /YX /FD /c /DBUILDING_LIBCURL
/Fo"release-ssl\cookie.obj" .\cookie.c cookie.c
e:\dev\curl-7.13.0\lib\urldata.h(55) : fatal error C1083: Cannot open
include file: 'openssl/rsa.h': No such file or directory
NMAKE : fatal error U1077: 'cl.exe' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio
.NET\VC7\BIN\nmake.exe"' : return code '0x2'
Stop.

-- 
Cheers... s.e.t.i.