If you are using v8.1.0.6 to v8.1.0.10, blogs will always show as "not found", please do the following changes:
1. Open shopblogs.asp
2. Locate below string (estimate 33)
getnewsmessagetypee ContentId
3. Please replace this line to :getblogsmessagetype ContentId
4. Save the file and upload to your site.