Remote Desktop Access

My boss is going on a two week long tour, starting tomorrow, with her MacBook Air and I wanted to be able to assist her should she need any technical help on the go.

The only options I know for Remote Desktop Access are ChickenVNC and Remote Desktop from Apple, but both are a bit complicated depending on the connection you are using. Also, she wouldn't understand how to find her specific IP address, when on a hotel Wifi connection.

I was wondering if any of you have a suggestion for software that is extremely simple to use and would allow me to assist her through screen control, by having her simply opening and/or logging into the program.

Thanks in advance.