4. Prohibited Uses Generally (without a Bigstock Special License*) you may not :
1.Use an image in products in which the image is a dominant feature if the product is to be subsequently sold or distributed. Examples include posters, postcards, greeting cards, mugs, shirts, hats, mouse pads, magnets, art prints, paintings, or calendars.
2.Use the image in screen savers, software, web page builders, gallery, or any system where the image file can be unincorporated from the software or system or be shared among, transferred to, or otherwise distributed to a number of users. Images may not be included in image libraries without a Special License.
3.Display or post images in a format or size larger than 800 by 600 pixels If more than 10 images from the Website are being used, size must be no more than 400 pixels in height or width.
4.Use images in any way that violates the rights of individuals, including by way of example, intrusion of privacy, misappropriation of likeness, or depiction in a false light. Images that are designated for editorial use only or as not being model-released may not be used for advertising or promotional purposes.
5.Use images in any way that violates civil and criminal laws such as those regulating pornography, obscenity, fraudulent schemes, counterfeiting, espionage, and aid to illicit activities.
6.Use images in a manner which the depicted person or a person owning the depicted property would find objectively offensive including but not limited to usages associated with sexual entertainment, sexual products, or intoxicating, addictive, or pharmacological products.
7.Resell or distribute any image unless it is an integrated, inseparable part of a product and constitutes less than 50 percent of the overall product area, page layout or design.
8.Reverse engineer, decompile, or disassemble any part of a file or accompanying materials.
9.Use any part of an image in a trademark, service mark, logo, or part thereof.10.Remove any copyright or trademark information from any image, file, or accompanying materials.
http://www.bigstockphoto.com/usage.htmlПисать ли в техподдержку - решайте сами.