Probably - depends on exactly what you mean by 'docs' on partition 2. If that is just word, excel, pictures, music etc, then no problem. If you actually use partition 2 to save emails and other things normally held at 'c:\documents and settings\all users' and various other subdirectories, you will surely know that you changed the 'save' location in outlook express or other email package.
In that case, once Win7 is up and running, changing the 'save' location in the same way to point to that location should reveal the data undisturbed, but there is no guarantee that the email formats are the same, so take suitable backups first.
Be extremely careful when you install Win7 to be sure you are over-writing the correct partition. You might be wise to take a full image of it in case you want to recover, and then delete the partition. Choose that empty space for the new install of Win 7