I took far more steps befor I got at this point and knew that the problem was with ENUM ;)
I´ve solved this problem a bit ugly.
I made in the query a variable wich will take the 'shape' of the database flavour. "CREATE TABLE ".$row[0]."(id $db_ind PRIMARY KEY,..
So in MSAcces 97 it wil be: $db_ind ="COUNTER"
And in MSAcces 2000+: $db_ind ="COUNTER NOT NULL"
In MySQL: $db_ind ="AUTO_INCREMENT NOT NULL"
Well, this is the basic thought. For now I have to find out how many databases support this and which one might this company purchase.