violation of personal property/ failure of employer to have e mployee complete paperwork

I am a highly skilled and experienced Paralegal. I have been voluntarily out of work for about 6 months. I recently decided to go back to work and accepted a job with a small firm who was eager to have me start right away. On my first day, I was not given a handbook or any relevant tax or human resources information to fill out. Yesterday was my 6th day and still, no procedures or policies were explained to me and I still was not given any paperwork to fill out (not because I did not ask, I add). Needless to say while I was not working I had been working with several recruiters to possibly assist me in looking for a position (who regularly contac me via email). When I left my office for my lunch break, my new employer went into my PERSONAL email account and printed an email from a recruiter, I guess by referencing the memory of the hard drive. When I returned from lunch I was asked to leave and not given any real explanation other than they were upset I had other jobs lined up, which was not the case. Not only do I feel violated, but I fear I will not get paid the hundreds of dollars they owe me. I understand it is their equipment but do they have a right to go into my personal email? And how can a computer usage policy be enforced if it was never explained to me? Please let me know my rights. their rights.