You'll want to make sure that the "Show sheets as tabs" box is checked when you publish from Desktop to Public.
That will allow all sheets and dashboards that aren't hidden to appears as tabs in a web browser (example).
If you're publishing to Tableau Public with the "Show Sheets as Tabs" box already checked, you can double check that the workbook you've uploaded is indeed allowing that by logging into your Tableau Public account and confirming that the their is no little orange mark on the last column of tab icons.
Does this help answer your question or are you still unable to have all the dashboards appear on your blog?
Thank you, not sure what was going on earlier. It is working now. Thanks for you help.
Sent from my iPad
Great to hear.
Can you please show where to find the workbook setting on the newest Tableau Public V10?
I cannot seem to find the option showed in your screen shot on where to delete the sheets.
Thanks sooo much!