You can reach  Go2Unix.com as follows:

By E-Mail:

Our general e-mail address is:     wiz@go2unix.com

Contact sales at:                              sales@go2unix.com

By Phone:

For Sales:            800-445-9292, Monday through Friday, 9:00 am through 5:00 pm, EST

Other Business:  973-709-9400, Monday through Friday, 9:00 am through 5:00 pm, EST

Fax Number:        973-709-9410

By Mail:

Go2Unix.com

c/o Open Systems Computing Corp. 

1341 Hamburg Turnpike

Suite 2, 2nd floor

Wayne, NJ 07470