The name never had a spelling that I can remember, but it was pronounced /'biː.goʊ/, like the words "bee" and "go" in English.
A bit of googling has found some info, but since I'm not quite sure how to represent the sounds and there isn't an IPA input in google, I thought I'd check here. Is "Beego" (or something that sounds reasonably close) a personal or familial name in any language you know? If it's not a name, is it a word? What does it mean?