Change directory resulted in picture uploads not working

I have UPFRONT installed at http://www.togethernt.com.au/blog/ but when I made the default home page to open at toghethernt.com.au (no blog) – the graphics uploaded by users no longer functions and I have to manually go via ftp to upload pics into the right directories to be displayed. How can I fix this please?

Btw, this ticket did not give me the option of selecting UPFRONT as installed theme for some reason…