Im with you on the browser thing, however... IE is useless and I needed something test with... which in this case, proves that the server is capable of accessing the site and that Sophos is allowing the server through... I'd say that justifies the resources, once I've finished, it'll be removed.
Sophos doesn't have a proxy setting, proved by the fact the rest of the system is able to access sites without issue, it seems to me that this is a Solus thing, but I'm not that familiar with it, So I was hoping that there is another setting that I've missed.