I use the cacko rom too, and am having proxy problems.
I use a SSH tunnel to connect to a proxy server that runs squid. Net front is ok with this, and can use it to do DNS lookups fine (for resolving web pages) but Opera doesnt like it and keeps giving cannot find host errors.
I\'m not sure what it doesnt like, but it could be either DNS or it not using the proxy settings (localhost:3128) properly.