I'm concerned though, about the images used on the home page. He/she created a logo using Yahoo and google's official logos. You can be sued for trademark infringement for that if you did not have approval or permission to use their logos.

Rules for Proper Trademark Usage:

-Distinguish the trademark from the surrounding text in some way. Capitalize the first letter, CAPITALIZE or italicize the entire mark, place the mark in quotes, use a different type style or font for the mark than for the generic name.
-Use the trademark ONLY as an adjective, NEVER as a noun or verb, and NEVER in the plural or possessive form.
-Use a generic term following the mark, for example: GOOGLE search engine, Google search, GOOGLE web search.
-NEVER modify a mark, for example, through hyphenation, combination or abbreviation, such as: Googliscious, Googlyoogly, GaGooglemania
-Normally, an unregistered mark should be followed by the superscripted letters TM or SM to give notice that the company claims trademark rights in the term. A registered trademark should be followed by the symbol ® to identify the term as a registered trademark. In advertising copy, notice of trademark rights may be provided in a footnote format – e.g., by placing an asterisk adjacent to the mark and placing an appropriate notice at the bottom of the page on which the asterisk appears. Example: *GOOGLE is a trademark of Google Inc.
-Trademark rights vary from country to country. Some countries have severe criminal and civil penalties for improper use of the registration symbol. Therefore, do not use the registration symbol (®) in countries where the mark has not been registered.