I want to customize my WP homepage 1st. Need some help

Last night I joined as a member for a 12 month WordPress package with support. My confirmation ID is VCIAE1RDN7F3056YMT8H. I'd like some initial support in setting up/customizing my WP home page which I have a theme already installed with my hosting company, http://www.1and1.com.

Best way to contact me in California, USA is by cell phone call or texting +1-415-299-2506. Email is just ok, but not very much so, as for speed in communications due to the time differences in our countries....

Regards,
Brett