My post hasn't beed uploaded, don't know why((
Will write once more:
I've found some ways of solving my problems, but still I have encountered some obstacles.
I've created workflow in Sharepoint Designer on my initial list (with activities). In workflow I create new Item in new list with name of the current activity and after that start approval process.
In Infopath I've created connection to this very new list, and with help of filter ID = max (ID) I can show the only one value in the form for user's convenience.
P.S. I've seen another solution of this - checkbox in creating receiving data connection, where there are only values of the current item (something like that). But this checkbox is not enabled in my InfoPath
In submitting the form I've chosen Sharepoint library and name is equal this last item's name and status needed. After that I think I'll start new workflow on this library.
But I have several questions. When I tried to make data connection with initial list and show current item with the help of formula (modified = max(modified) it doesn't work.
And does anybody knows, whether it's possible to check in the new created list, whether the item has already been created, because I have different statuses and sometimes Item can have the same name and I'm afraid, that there will be a lot of items in the list..
P.S Some people advice adding key field, but name with staus for me is a key field. Some people advice creating workflow variable, but I can't imagine how to use it