Combine Clustered Columns with Clustered Lines

I am attempting to create a chart combining clustered column and clustered
lines but I am struggling to create the x series data the example given on
http://www.peltiertech.com/Excel/Cha...olAndLine.html uses 0.25 but
I can not figure out what to use with my graph. I need 5 lines to link into 5
different bar columns but when trying to figure it out myself when I get to
the end and uncheck both secondary axis tick boxes the labels at the bottom
of the graph change from Jan Feb March April May to Jan-00 Jan-14 Jan-28
Jan-42 Jan -56 and there are no lines or bars on it so I assume I am doing
something wrong. If anyone could help I would be really greatful

Thanks