Hi,new table on the homepage will be added in the corresponding dispcat you are using.
example: if you are using dispcat3.pl for your homepage( the dispcat you are suing will be unchecked (no #) in your config.pl, towards the bottom.
if you are using dispcat3.pl then you will want to edit that to add your new tables.
Just take care with your editing. Also always work from a copy of a backup, so you can upload the original current backup to the server if there is a mistake made, and you will be back in business.
let me know if you need any help.
cheers,
shnippy