I need to change tml-action-links

Hi,
I currently have the register and lost password links showing on my login page, but need to change the link for register to a custom members/register link so members are taken to my own custom register page.
Where is the correct path to do this, I have access to ftp/file manager etc.
Regards, Glen.

https://www.ads-software.com/plugins/theme-my-login/