I had several problems. One was with Infopath version. I was using 2010 and users 2007 so I had to republish from 2007 workstation. Ok ... that worked.
Second problem was with database, even though I had direct connection or ODBC connection, simply connection to accdb did not work so I had to change database to .mdb version 2003
Third problem was with certificate, I needed certificate because we are in domain, and when I republished from older workstation I had to first isntall on that workstation certificate to even work that publishing.
and last problem was with domain itself. Do not know why.
Last - 1 problem: what ever I do, when I published from central domain, somebody from subdomain, same IP range, different subnet could not open infopath form. Simply could not connect to database. So I solved the problem and now I have 2 infopath forms. One for main domain published from workstation that has 2007 version with installed certificate and one form published from subdomain also from one workstation with certificate and 2007 installed. Now it works
Last - 2 problem: still did not figure out how to do following:
- domain username to automatically fill textbox in form
- ip adress of user that is sending form
hope this helps. Also, ODBC did not work, so I did direct connection (ODBC had problems with user rights management) to access database that is in hidden form. Still have to solve problem on how to hide Infopath Designer and to leave only Filler since it is same exe file.