Help creating a new home page for a organic group.

Help!

I am trting to create a new home page for organic groups within my site. The goal is to get a list of all of the nodes within that group, displayed in a table format and broken down / seperated by node type ie each node type would be listed seperatly.

I am having real trouble working out how to do this. I think that the way to do it is to create a view (starting from the og_ghp_ron view) include some fields then use the theme builder wizard and insert the code generated.

I have done this but after I insert the code, there seems to be no effect on the groups (I have selected the new view in the OG config pages). then if I go back into views and try to do anything, when I save, I just get a white screen.

I think that it is a problem with the code that I have put into the template.php file but my PHP is not very strong so I'm not sure what I'm doing wrong.

I have looked at all the posts that I can find and the docs but I can't seem to find an answer.

I am using Drupal 5 and the Garland theme.
I have included the template.php file in case it will help.

Is this the right way to go about doing this?
If anyone can shed any light on this for me it would be of great help?

Thanks
Phil