Do you have examples of the kind of URLs that you want to preserve that are being changed?
WordPress has default formats for URLs, e.g. for single custom posts or archives of custom posts, but these can be modified.
Presumably your Drupal site also has formats for these, though different to what WordPress typically uses.
If you can share details of your existing URL structures for different content types then we may be able to help with the settings to reproduce the same with WordPress.
The admin access details work, thank you, but you haven't shared any examples of the new URLs and their old URLs from the Drupal website.
In general, this question is related to how URLs/permalinks are managed in WordPress. It is not something specific to Toolset plugins. But we do our best to guide in the right direction, whenever possible.
To receive more specific pointers and tips, you can share some examples of the current website's permalinks, along with their equivalent from the Drupal website.