I agree with Xarcell.
After I have read their statmenst about this modification to SMF, it's their job to find a way to get it working with other modifications to SMF as well.
TinyPortal is used by many smf forum user now, so i think a good way is for them to look over their install files and make the changes in there.
Or you can manually add the code in your self by looking at their install file and see what code to change and where.