Upgrade of Joomla v.1.5.15 to 2.5 for a Hebrew based site

Hello all, we own a Joomla based website in Hebrew. The current Joomla version installed on our server is 1.5.15. Another important thing to mention is that the module SOBI2 practically manges the database informtion on our site and as far as we understand this module cannot continue with us forward to updated versions of Joomla. What we need: a. programmer that can work in a Hebrew environment b. programmer with joomla experience c Programmer with the capabilites of upgrading to up to date Joomla version. d. Programmer that can work in a relatively short time frame. If you comply with the above please contact us as soon as possible.. Thank you.