There were no pointing errors, although the orientations of the observations were generally at the extremes of the allowed range (~20 degrees from optimal), which typically happens. Also, the Excel spreadsheet seems to imply that the WFALL aperture is always the zero point (please verify), but the proposal sometimes specifies other apertures, which might account for additional shifting. I put the actual ORIENT angles (wasn't sure how to change apertures) into the Excel spreadsheet, and then I could locate all of the high priority absorber galaxies in the images, and most of the lower priority ones (see the thumbnail images). And of course, there are many other galaxies in these fields too. Note that ORIENT = V3 +/- 180 degrees. Here are the optimal --> actual ORIENTs and apertures:

• Q0100+130: WFALL 135 --> WF3 251 (why so different?)
• Q0201+365: WFALL 180 --> WFALL 200
• Q1623+268: WFALL 225 --> WFALL 215
• Q2038-012: WFALL 170 --> PC1 185
• Q2348-011: WFALL 35 --> PC1 55

WFPC2 observation information from the data archive:

Target	RA	Dec	Exp	V3	Aper	Dataset	Filter	Date
Q0100+130	01 03 08.70	+13 16 45.70	1200	71	WF3	U5800501R	F450W	Jun 27 1999
Q0100+130	01 03 08.70	+13 16 45.70	1200	71	WF3	U5800502R	F450W	Jun 27 1999
Q0100+130	01 03 08.70	+13 16 45.70	1300	71	WF3	U5800503R	F814W	Jun 27 1999
Q0100+130	01 03 08.70	+13 16 45.70	1300	71	WF3	U5800504R	F814W	Jun 27 1999
Q0201+365	02 04 55.86	+36 48 10.21	1200	20	WFALL	U5800101R	F450W	Oct 6 1999
Q0201+365	02 04 55.86	+36 48 10.21	1200	20	WFALL	U5800102M	F450W	Oct 6 1999
Q0201+365	02 04 55.86	+36 48 10.21	1300	20	WFALL	U5800103R	F814W	Oct 6 1999
Q0201+365	02 04 55.86	+36 48 10.21	1300	20	WFALL	U5800104R	F814W	Oct 6 1999
Q1623+268	16 25 53.44	+26 46 46.51	1200	35	WFALL	U5800401R	F450W	May 16 1999
Q1623+268	16 25 53.44	+26 46 46.51	1200	35	WFALL	U5800402R	F450W	May 16 1999
Q1623+268	16 25 53.44	+26 46 46.51	1300	35	WFALL	U5800403R	F814W	May 16 1999
Q1623+268	16 25 53.44	+26 46 46.51	1300	35	WFALL	U5800404R	F814W	May 16 1999
Q2038-012	20 40 53.23	-01 07 02.94	1200	5	PC1	U5800201R	F450W	Jul 16 1999
Q2038-012	20 40 53.23	-01 07 02.94	1200	5	PC1	U5800202R	F450W	Jul 16 1999
Q2038-012	20 40 53.23	-01 07 02.94	1300	5	PC1	U5800203R	F814W	Jul 16 1999
Q2038-012	20 40 53.23	-01 07 02.94	1300	5	PC1	U5800204R	F814W	Jul 16 1999
Q2348-011	23 50 55.72	-00 52 22.31	1200	235	PC1	U5800301R	F450W	Sep 30 2000
Q2348-011	23 50 55.72	-00 52 22.31	1200	235	PC1	U5800302R	F450W	Sep 30 2000
Q2348-011	23 50 55.72	-00 52 22.31	1300	235	PC1	U5800303R	F814W	Sep 30 2000
Q2348-011	23 50 55.72	-00 52 22.31	1300	235	PC1	U5800304R	F814W	Sep 30 2000