Q1) How much does it cost to file and can I be reimbersed for that?
A1) To file in Small Claims court in Texas, the fee is usually about $15.00. The cost to serve papers on the Defendant is set by each county (usually $40 to $75.00).
You can call your local Small Claims Court and ask the clerk what the fees are.
Q2) What are my chances of winning?
A2) If the case is as simple as your post says (Employer bounced payroll check and refuses to make good), it should be pretty easy.
Q3) Where do i go to file?
A3) Go to your local county courthouse or court annex. Since you didn't tell us what county you live in, I can't give you specific directtions, but you should be able to look in your local phonebook (under County Government) and find a listing for your Small Claims Court.
Suggestions:
Before you file, make absolutely sure that you are suing the correct person or entity. If your employer is incorporated, you need to sue the corporation through it's 'Agent of Service'. You can find out who that is from the Texas Secretary of State's office. If it is an proprietorship or partnership, you need to name the owner(s) and the business.
Email me directly (address at the bottom) with some specific names, etc. and I will try to help.