Could you tell us more precisely what kind of trouble you met ?
Did you read the FAQ at the following link ?http://www.geneanet.org/help/faq/index.php3
To upload your GEDCOM file on GeneaNet, you must first identify yourself from the HomePage with your ID and your Pasword.
Then, go to "My family tree online" and follow the instructions.
Do not hesitate to send email to me at email@example.com
The GeneaNet Team