Take it day by day, Darren, the docs can't sound too promising to not give false hope. Every human is unique, anything is possible!
Regarding the blocking issue, does the forum software offer RSS feeds? That way Darren could subscribe to the RSS feed in e.g. Google Reader and at least read up a little to take his mind off things now and then.
The Cancer can be controlled with diet , alkaline body chemistry will not allow cancer growth , maybe you can stop this by making him healthy with a better diet instead of sicker with radiation & chemo . Or try to get some hydrazine sulphate to starve out the cancer .
Chryco, please do not endanger others by giving such advice. I know you only mean good but your statements are utterly false; of course chemo & radiation is no fun but it's the best we've got.