Ron Gillies was appointed senior vice president of NEC Solutions (America) Inc.'s Visual Systems Div., which makes visual display solutions including DLP- and LCD-based mobile, installed and large-venue projection systems, as well as PlasmaSync plasma displays.   . . .    Orbital Imaging Corp. has promoted two senior executives: Gary Adkins was named vice president of federal sales and national security programs, and Tony Anzilotti was appointed vice president/finance and controller of the company, which provides earth imagery products and services.   . . .   Newport Corp. announced that its 2003 Newport Resource, a 1,500-page product and technical tutorial catalog, is available on CD-ROM, in English, French and German. To obtain a free CD-ROM version of the catalog, contact Newport at 800-222-6440 or visitwww.newport.com.