FudForum - Trouble Ticket problems

Hi Everyone,
I have just got back to trying out phpGroupware again and coming across a couple of problems. 
When I click on the FudForum icon the following message appears:

The 'files/' (/home/john/files) directory exists, however webserver has no write permissions to that directory.

I have set the folder permissions to chmod 777. I saw mention of having to "use the full path" can anyone explain? I am using Fedora 8.
Also there are two fields in the phpgw_tts_tickets table missing: ticket_platform and ticket_attachment. I have managed to get the TT working by adding these fields but I would like to know the correct  parameters for them.

I would appreciate any help to get these final issues sorted out. phpGroupware is a fantastic piece of kit which I am keen to try out in a School environment.

Oh one last thing, I see mention of an Inventory module, does anyone have any info on this

Cheers

JohnSent from the phpGroupWare forums @ http://forums.phpGroupWare.org