Does Quartus II support use of fixed point arithmatic packages in VHDL?

hmm, if I can use sfixed and ufixed then how is it true to say that fixed point is not support like it says in the Altera website link??

If fixed point library was created in '93 then why is it not in Quartus II yet??

What changed in '2008 that was not true in previous versions when it comes to fixed point support?

I have used numeric_std a lot and always use the unsigned and signed for arithmatic or sometimes and integer. However, I only found this week that there is something called sfixed and ufixed. Since I found it out so very late, I am sure that there are some good reasons why these are not ubiquitous.

I get the impression that mankind has used std_logic_vector to implement fixed point calculations and just shifted and truncated the bits as required. People use some seperate variable or constant to store the information about the fractional and whole part. Perhaps this is a good place to use a VHDL "record".