I'm really new to Writing Crystal Reports. 

I have a report that I want to show cost and extended cost.  I would like it if the extended cost is blank if its a quantity of 1 

I have

if qty = 1
then ""
else
qty*cost

any ideas?

Ok.  Thanks for that.

Now I have two more questions. 

First is about parameters.  I have a parameter set so my users can select a product class.  Multiple product classes can be chosen if desired.  I have a section of the report that shows what paramters have been selected.  If more than one choice is made I only see one of the selections.  How can I see all of the selections made.

Second Question,

This report also has a field for warehouses.  If there is ware house then I want the phrase W.O. Purchase to show.  How can I format that?

Thanks for all of the help so far.  My report works as planned. 

My next question concerns a logo.  I have a report that needs to have two separate logos.  I would like one logo to print if (table.date) is before 12/31/2011.  I would like another logo to print if (table.date) is after 1/1/2012. 

How can I format the objects to act this way?