This may sound a little amatuer but, can .png formatted images be used in web pages? if so do most hosts allow?

In theory there's no reason why you can't use them, although some users may have compatibility issues with their browsers. This link is up to date:

http://www.libpng.org/pub/png/pngapbr.html

There's no hosting issue that I'm aware of personally. I've not had a problem.

This may sound a little amatuer but, can .png formatted images be used in web pages? if so do most hosts allow?

Well I kinda knew i could use them, i guess im just having a problem with my page. it worked alright ofcource on my computer, but after i uploaded everything to my host, only jpg's would show.

Littlie strange!

Well but asking to hosting company or reading their documentation will be good idea,

Thanks