If you are familiar to an older version of Flexi or another design program and wish to continue using the tools and workflow you are used to, Flexi has an option to change its workspace to look and feel similar to that program. To access these workspaces, go to File > Workspace.
The Workspace Menu
You can then select which Workspace to use. Note that if you have your toolbars set up in a particular arrangement, it will clear that arrangement and there will be no way to get them back. This will not affect your swatch table arrangements, however.
For example, note the Default Flexi workspace
And compare the Main Menu and the toolbars to:
The Adobe Workspace
Flexi 7 Workspace
You can play with the various workspaces to see which one feels right to you.