The link works fine for me. Here's the section (cut and paste from the link I gave).
Sec. 277. [8 U.S.C. 1327] Any person who knowingly aids or assists any alien inadmissible under section 212(a)(2) (insofar as an alien inadmissible under such section has been convicted of an aggravated felony) or 212(a)(3) (other than subparagraph (E) thereof) to enter the United States, or who connives or conspires with any person or persons to allow, procure, or permit any such alien to enter the United States, shall be fined under title 18, United States Code, or imprisoned not more than 10 years, or both.
Very strange then that 4437 has 274(a)(1)
(A) which like the old 277 addresses illegal entry
... yet adds
(B) which adds entry at other then a designated port
(C) which adds "residing" to cover those that are not covered in (A) & (B)
(D) which adds "transports" to cover those that are not covered in (A) & (B) & (C)
(E) which adds "concealment" to cover those that are not covered in (A) & (B) & (C) & (D)
(F) which makes all of these a crime even on the high seas, in anticipation that the person just might be seeking illegal entry
ALL of these addtional ones were NOT covered by the existing law, and looking at simply 277 are NOT illegal.