Does anyone know if it is possible to use proxychains with a non-SSL HTTP proxy? I am trying to test a ISA/Forefront proxy and the connections are being denied. I know the HTTP proxy works because I can use a browsers to make connections through it.

A packet capture revealed that the Forefront TMG device is preventing proxychains from connecting with SSL requests.

Proxy Error ( The specified Secure Sockets Layer (SSL) port is not allowed. Forefront TMG is not configured to allow SSL requests from this port. Most Web browsers use port 443 for SSL requests.  )
Is there a way to make proxychains use non-SSL requests or another tool that could be used in it place for HTTP connect proxy use?