Question

1. I need someone to find some photos to post on the blog.

2. I need someone who will find some photos to post on the blog.

3. I need someone who will find some photos so as to post on the blog.

----------------
Are they all the same? Does #1 mean #2 or #3?

==============================
4. I need someone to go there.
5. I want someone to go there.

(Is 'to go' an objective complement in each sentence?)

Answer 1

1. I need someone to find some photos to post on the blog.

(Or does 'to post -' modify 'some photos'?)

Answer 2

1. I need someone to find some photos to post on the blog.

1-2. I need someone who will find some photos which he will post on the blog.

1-3. I need someone to find some photos so that he may post on the blog.
-------------
Does #1 mean #2?

Answer 3

1. I need someone to find some photos to post on the blog.

1-2. I need someone who will find some photos which he will post on the blog.

1-3. I need someone to find some photos so that he may post on the blog.
---------------------------------------
Does #1 mean #2 or #3?

Answer 4

Sentence 1 means the same as both the other sentences in your last post.

In the first post, you used "so as" in sentence 1-3. That's not correct phrasing. If you omit "so as" the sentence will be fine.