iMacros Upload Automation

Gah this has been bugging me, I'm trying to automate an upload using iMacros however I found out that on the firefox addon version of iMacros you can't upload using the TAG command so I downloaded the version for IE.

Now I'm faced with an error telling me to specify the full filename or one relative to iMacro, after giving up with the full filename , I put an image in the iMacro directory so that no full path would be necessary and yet it still comes up with that error.

I don't know what to do..