The Database Abstraction thingy is basically a set of very simple functions that
do what you'd normally do by hand.
Instead of calling mysql_dq_query, you call one of his functions.
If you are new to PHP I suggest you try using the normal mysql commands first,
and try putting them into functions yourself lateron.
For example, I wrote a few database procedures to help me fetch data from a table to and have it print a html selectbox in one function, so I can call a function called
print_select_box(some_parameters_here)
and that would create a selectbox with the data from the table in it.