Allow HTML in Custom Build Message

I'd like my custom build message to be spread over multiple lines, e.g.:

instance,status,time,digest,pass,5164836,linear,pass,2168611,linear-deflate,pass,21014881,linear-inflate,pass,3890575,mersenne,pass,24941909,mersenne-deflate,pass,136364380,mersenne-inflate,pass,19248451,
I tried inserting a BR tag on the end of each line, but it's been converted to "<br>" within the HTML that FB Server shows on its Overview tab.
I guess what would be really wonderful would be for me to be able to draw a table within the Custom Build Message.I hope this isn't too hard to implement :-)