How can I make a button in a Form which when clicked opens a windows exlorer so as to select OLE objects (mainly jpg) and embed them in the required place
Use vba code to generate the Microsoft "Common Dialog." Search this site for "Common Dialog" or see Litwin, et al's Access Developer's (97/2000/2002, select your required version) Hanbook. It has it on the accompanying CD as well as in the text itself.