Source Tables for report in SAVEASPDF

Hi Folks -

I have been asked to create a report that will run through the Report Inbox table save the report as PDF and attach the report to email and send it to the user id in report inbox table. The help I need is to save the report as PDF, I am using

REPORT.SAVEASPDF(REPORTID,FILENAME,REC);

Unfortunately I am not sure how to get the REC from the report inbox table. I have the report ID in the Report Inbox table but to save it as PDF how do I get the REC part. If I am on a Posted Sales invoice I know the record I am on but from Report ID I just don't know how to get the REC part.

Also, in the Report Output field in the Report Inbox table the report is saved in a BLOB field but when I tried to extract the information from BLOB field and create a file it does not like the file when attached causing errors.

Any help is highly..highly..appreciated.

Thanks

RJ.