To make a Remote Hands request you first need to go to Http://ticket.websiteforge.com
Or you can visit the links in your "Sites and Invoices" area:

Fill out the information with your request, be sure to select "Remote Hands" in the "Topic" area and click "Create Ticket".

You will generally hear back from Remote hands within a few hours. This repsonse is usually geared toward any questions they may have and if all is clear on the request a time estimate will be given.
Depending on the size of the task most Remote hands request are completed within 1 to 7 days.