You should simple open http://127.0.0.1/home/
And here you have sections modules. You should have here at least one phpmyadmin and when you click it, it will open phpMyAdmin.
If you want to use alias - for example you want to load phpmyadmin using http://phpmyadmin
you will have to create it.
So go again to http://127.0.0.1/home/
and check if below phpmyadmin modules you have Virtual Hosts Manager 1.4 . If not, close easyphp , go to http://www.easyphp.org/modules.php
, download and install Virtual Hosts Manager (choose the one for 14.1 VC9).
After you start again easyphp you should have at http://127.0.0.1/home/
your Virtual Hosts Manager 1.4 . Now simple click on "Add virtual host", as a name you can for example insert phpmyadmin and in path directory you should insert the whole system path to directory where you have phpmyadmin. For example mine is **D:\DaneAplikacji\easyphp\modules\phpmyadmin420x140509165737**. Save it and now you will be able to open phpmyadmin using your alias as for example http://phpmyadmin