Incorrect syntax near '='.

[SELECT bdglin.ttlbdg FROM bdglin,bdglin.recnum Inner Join = {jobcst.jobnum}
    and bdglin.cstcde = {jobcst.cstcde}] + 
[SELECT sbcgln.bdgprc FROM sbcgln,sbcgln
    Inner Join prmchg on sbcgln.recnum = prmchg.recnum,prmchg.jobnum 
    Inner Join = {jobcst.jobnum} and sbcgln.cstcde = {jobcst.cstcde} 
    and prmchg.status =1]

Copied and reformatted to make reading easier.
First... look at the 'Inner Join' on the first line; shouldn't it be:
'Inner Join on <field> = <field>'
And again on the last line.

Start with fixing those and then see what else doesn't work.

The inner join on the first line needs a table name followed by an ON clause...then you have field = field.