You seem to have a customer/commercial licence, so you can use the Software AG Installer (latest version on Empower will work) to download the products.
Since 10.7 is still under standard support (though standard maintenance ended in April 2024), you should see the 10.7 repository. If you don’t see 10.7 when you use the latest installer, use your original/older installer or contact Software AG Support to access the repository.
You need Empower credentials associated with your customer number.
Upgrade - As Holger says, an upgrade to 10.15 is recommended since 10.7 is out of standard maintenance. If you have extended maintenance, it is good to start the upgrade conversation now while you still have support.
Caveat - Though your 10.7 packages may/will work on 10.15, it’s not recommended to use them in that way to avoid unpredictable issues.
KM
#Integration-Server-and-ESB#webMethods