Assuming mc.tcz is now saved in your tce/optional folder on permanent storage, you can add mc.tcz to /tce/onboot.lst and it will be loaded on re-boot.
If you want to save mc settings, you will probably need to add the conf file to /opt/filetool.lst and it will be saved in your backup. If the mc settings are saved under /home/tc, there is no need to add it to filetool.lst, but if the mc settings are saved under /usr/local/etc, you will need to add the full path (without the leading "/") to filetool.lst.
Once a backup file (mydata.tcz) is stored once, tc/mc will load it and save it automatically - to start things off, I guess you could use "filetool.sh -b" in microcore.