Have you found the link to private messages?
If not, go to the very first post in this thread. The author of the post is jclinganrey, and you will see her name highlighted in blue (to the left of the post). Click on her name and a drop down menu will appear. One of the options on the drop down menu is "private message". Click on that and it will take you to a screen where you can write a private message to her, stating that you are done with your blocks and need her address. After composing your message, hit send and you are good to go.
Jclinganrey will then private message you back. There is a link at the very top of every page, a little towards the right that says "notifications". If there is a (1) after that, you have a private message. Click on the "Notifications" and it will take you to your private message.
I hope this helps! I am tech challenged and need to be hand held a lot, especially when it comes to working my smart phone
Anyway, please don't hesitate to let me know if you need more help.