I appreciate the quick response.
Like most of us, I’ve come to hate all things IE, but was a little surprised at Opera’s deficiencies – I thought it was better than that. (But maybe the deficiencies are mine.)
The photographs belong to the client; the purpose of the site is to display/sell her photo prints and she’ll get 100% of print sales. I’m charging her only for the website creation and implementation. (I may recommend a website maintenance/update contract later, but that’ll be separate.)