iam stuck with my modification

[MrNase]

hey, i hope i got the right forum for my little 'request'.

I have added a new column called 'onfrontpage' to the 'thread' table.
When i make a new thread there's a little selectbox where i can choose something like "is on frontpage". When i select "yes" the column 'onfrontpage' for this thread is filled with '1'. Otherwise it's '0'.

Now here's my problem:

I wan't to have a little '<input type="checkbox">' on showthread.php that shows if this thread is currently on the frontpage (if the columns 'onfrontpage' says '1') so that i can easily change it.

But how do i do that? I've been working on that for 4 hours now but i didn't figure out how to do that yet

I can't select the value of 'onfrontpage' out of the database.

It must be somewhere hidden in the showthread.php or functions_showthread.php.

Is there someone with too much spare time who is willing to help me?
It doesn't need to be a detailed instruction, some hints are more than welcome

regards,
dominik