Counter-Strike Source and making animated sprays

[Hav0k99]

In photoshop 8 CS how do I check if a certain image specificaly .TGA is 32bit and uncompressed. I'm going through a book my wife has on 7.0 and can't find anything.
This is for Counter-Strike Source and I followed this tutorial here and I can't find out about getting info on TGA image since my spray is not showing at all