If you have endorsements and your STCW, you may be picked up by the larger companies first.  The starting pay will be better than a job with no endorsements and you will gain experience for other positions within the company. 

Go back to the dispatcher's page and any of the companies on the list will talk to you about an entry level position.  Also, scour the yellow pages for your areas under Marine Towing and find other outfits.

Use the message boards on this site for other advice.

Good Luck.