The new synchroarts.com shares a login with landr.com - if you did not previously have a LANDR account, then you will need to make a new account.
synchroarts.com did previously have a support login, though it is separate and will not work to log you in to the main website.
If you do have a landr.com account, but are having trouble logging in or resetting your password on synchroarts.com , please log in or reset your password from landr.com instead — this will update your account and fix the login issues.
Once you have a login, your iLok ID can be connected from the Products page, or the iLok ID tab on the Account Settings page.
Note that this is the iLok login ID, and not the email address associated with the ID.
Connecting your iLok ID will provide links to current products like VocAlign Project 5, VocAlign Ultra, RePitch Standard and Elements, and Revoice Pro 5.
Installers for older software like Revoice Pro 4, VocALign Project 3, and VocALign Pro 4 can be found in this Legacy Installers article instead:
https://synchroarts.zendesk.com/hc/en-us/articles/22319520396055-Synchro-Arts-Legacy-Installers