Take a look at this thread first.
Basically, there are several ways you get HTTPS on AOLserver.
- You can use the 40-bit "export grade" nsssle.so SSLv2 module available in some AOLserver binary distributions
- You can compile your own 128-bit nsssl.so SSLv2 module with the expensive RSA BSAFE Crypto-C libraries; look in the nssock source directory and read the source, documentation, etc. Compiling it pretty straightforward
- You can compile Scott Goodwin's open source nsopenssl.so SSLv2/SSLv3/TLSv1 module based on the open source SSL SDK from OpenSSL.
I don't know whether or not you can use OpenACS with two different servers (e.g., AOLserver and Apache-SSL) or whether or not you want to two different machines. Hopefully someone else will answer that.