I'm very probably posting this in the wrong place... If so, please redirect me. A lot has changed since I was here last!

I have a drawing of a simple assembly. I used placeholder names in lieu of the official part numbers because I hadn't created them yet. Later, I used SolidWorks Explorer to change the names of the part files. When I opened the drawing up again, the dimension links were broken, and the new part numbers have been added to the BOM but, they didn't replace the original part names. They are added as separate items.
I was going to just delete the dimensions and the old part names and re-insert the dimensions but, I'm wondering if there's an easier way to do this? 
Thanks in advance for your time.