Kate Plus 8 Jon and Kate Gosselin "cordial" during twin's brithday celebration 10/09/2009 Jon and Kate Gosselin were apparently able to stomach each other long enough on Thursday to celebrate their twin's ninth birthday without any problems. Read More RELATED NEWS Jon Gosselin celebrates daughter Hannah and son Collin's first day of high schoolKate Gosselin: Upcoming 'Kate Plus Date' dating show was "exciting" and "awkward"Jon Gosselin on taking custody of his son Collin: "He wanted to live with me" TAGS: Kate Gosselin