I did a full clean install onto a new (

) 120gb harddisk, and I installed all the updates in Software update, so i am running 10.3.3. Then I noticed that my short user name was "joebloggs" instead of just "joe". So I created a new user with admin priveleges and used it to delete the original user. I now have one user.
The first problem that I noticed was that I couldn't create a folder in the Applications folder even though "get info" said I had read and write priveleges, I changed the owner from System to myself and it seemed to fix it. I also repaired the priveleges but it didn't find anything out of the ordinary. Just now I went to update Toast and it's installer told me that I didn't have sufficient priveleges

.
So why does my user differ from the original (deleted) user?
thanks for your help.