Nicki's Lair

Anybody have insight on how to get visible borders onto a table in an LJ entry? Links to templates, or anything? I can't seem to make it work! I just get a list of text with no lines between cells, like in this entry (in which two lines of a table, five cells each, are filled). Admittedly, it's been a while since I did html from scratch, but to me the code looks like it should work. I'm stuck! Please help?