table to fetch campaign details

hi experts,

I am facing an unique issue;I am trying to fetch contacts linked to the campaigns,which I am able to fetch  using tables  CRMD_MKTTG_TG_I to find TGs based on BP

Table CRMD_MKTPL_TGGRP  to fetch campaign guids , using these I am able to get the guid of campaign.

But inorder to fetch the campaign details I am passing the guid to table cgpl_project but instead of giving me an unique campaign id;its returning me all the campaigns in the table;also when I  try to open any row in display,the guid feild turns to the value of exteranl id feild.

please let me know how to get the campaign details by passing the guid value;or if there is any FM to convert the guirdsd data.

please help.