On the main Strawberry Perl website, it says in giant font right on the front page "No additional installation required.". Since there's only 4 paragraphs on the entire website, that's 25% of the website documentation reserved to explicitly say that there's no additional installation required.
Is this perhaps not being clear enough that you don't have to do any other installation?
Andy Lester on Perl Buzz has unfortunately linked to a utterly incorrect blog post purporting to describe how to install and set up Strawberry Perl.
So for the sake of correcting people, here is the "official" installation procedure needed to install Strawberry and get a working and configured CPAN client.
1. Uninstall any other versions of Perl, including Active Perl and cygwin. (There are some hacks posted by people to avoid this, but for now Strawberry only supports being the only Perl on the machine).
2. Download the Strawberry Perl installer.
3. Run the Strawberry Perl installer.
4a. Run Start -> Programs -> Strawberry Perl -> CPAN Client.
4b. Alternatively if you prefer the console, run "cpan".
That is the ENTIRE install/setup procedure for Strawberry Perl.
There's no need for binary programs, it's automatically installed for you.
There's no need for configuring CPAN, it's automatically pre-configured for you.
There's no need to pick a CPAN mirror, it's automatically selected for you.
Sure, you CAN install extra binary tools if you want, and run the CPAN configuration manually if you want, but NONE of it is necessary.
25% of the Strawberry website is devoted to saying so.
Both posts do Strawberry Perl a disservice, and should be corrected.