The currency used in Czech Republic is the Czech koruna (Czech crown, CZK). Current approximate exchange rates, as of June 20, 2014:
At https://mapsengine.google.com/map/edit?mid=zwixKaiRCfEk.k9vjMXUFNvGo you can find a map where the following places are labelled:
During the conference, there will be enough reservations in a nearby restaurant Michalský výpad (the one where the conference dinner will take place). The participants will have the option to order their lunch in advance in the morning at the conference venue, to avoid waiting during lunch time.
Menu for monday: http://ameql.math.muni.cz/iqsa2014/pondeli.pdf
A taxi ride in the centre of Olomouc costs approx. 100-200 CZK.