Starting a new Topic becasue I closed the previously a bit early.

This sholud be the default settings in umbraco to be able to blog fom an iPhone:

Here's the details for an out of the box BlogForUmbraco4 installation:

•Name the channel whatever you like
•Select the "Start Node in Content - "Blog"
•Select a Start Node in Media Library (nice to separate out the blog post images into another folder)
•Document Type "BlogPost"
•Description field - "Body Text (bodyText)"
•Category field - "Tags (tags)"
•Excerpt field - leave blank

The only problem i have with iBlogger and this setup is if I set the Category field to Tags, then when I post from iBlogger I get an error:

"Object reference not set to an instance or an object", or If I select a tag that has alredy been entered I get "Input string was not in a correct format."

Any ideas?