<human>: Can you summarize the given text in a few sentences?

Hi PF, looking for advice on a approaching my new company about a raise.  Currently I am on a 6 month subcontract moving to the main company at the end (mid Jan).  When I was hired, I was out of work so I took whatever rate they offered, which isnt too bad for me.  After working 5 months, I like the job and would like to continue with the main company.

Throughout this time I have heard rumors of what former employees were paid, what they were paying a friend who is no longer with the company and I am underpaid based on the work and value I bring to the company.  I am paid $7/hour less than my friend was making and would like to be close to that rate.  My PM is happy with my work and the value I bring to the team but he is usually not consulted on wage increases.  To make this even more complicated, a current employee of the new company was in the same situation and asked for a raise when he was on-boarded and they got a little childish with him.  He basically told them companies were knocking on his door but he wanted to work for our company.  The HR lady basically said "why dont you go work for them then".  I have had interest in me as well but prefer this position as it seems stable and pays ok.  How do I go about breaching this topic with them?  I've never been a fan of "so and so make xxx so i should make xxx", but I know it's in their best interest to pay me as little as possible so I need to fight for myself.  It is a small company (under 100) but the contract is pretty big so I know that I am not approaching anywhere near my cost(another former sub was getting paid more than $30/hr more than I am currently but she was with the company for a long time and was her own LLC so she paid for her own benefits). 

I was thinking of avoiding the HR person who was childish and contacting the VP whom I interviewed with.  Also was considering using my current company to renogiate the rate before I go to the new company, but I doubt they would as it doesn't benefit them.  Any advice?
<bot>: I'm transitioning from a sub to the main company which acts a little immature when it comes to renegotiating rates and I need advice how to ask for a more appropriate rate.