Its rather simple for anyone interested:
1. Browse to category your site belongs to
2. Click on botton “Add Your Site”
3. Copy and Paste code provided for link back on your site and fill out all fields.
4. Submit.
One minus of the system I use is that links are dinamicly allocated as more sites added, with newer sites been listed first. So there is possibility of your link to move to page 2 and 3 etc. System also uses a cron job to auto check reciprocal links. If someone using similar system, please put my link on your site, PM me with location of link and information to be put on my Link Exchange for you site. I will manually add your site.
Thank you